General Test Instructions 2002 SCHOOL CERTIFICATE TEST • Reading time: 10 minutes • Working time: 1 –12 hours • The supervisor will tell you when to begin the test • This test has TWO sections • Attempt ALL questions • Write using black or blue pen • Draw diagrams using pencil • Calculators may be used • Write your Centre Number and Student Number at the top of pages 29, 31 and 35 Directions for Section 1 11 November • Attempt ALL questions Start 12.50 pm • Complete your answers to Section 1 on the separate Section 1 Answer Sheet • Complete your answers in black or blue pen SCIENCE SECTION 1 50 marks S11 2002 SCT • SCIENCE • SECTION 1 BLANK PAGE –2– 2002 SCT • SCIENCE • SECTION 1 Instructions for answering questions in Section 1 • Complete your answers in either black or blue pen. • Multiple choice Select the alternative A, B, C or D that best answers the question. Fill in the response oval completely. Sample: 2+4= (A) 2 A (B) 6 B (C) 8 C (D) 9 D If you think you have made a mistake, put a cross through the incorrect answer and fill in the new answer. A B C D If you change your mind and have crossed out what you consider to be the correct answer, then indicate the correct answer by writing the word correct and drawing an arrow as follows. correct A B C –3– D 2002 SCT • SCIENCE • SECTION 1 1 70 80 90 100 110 What is the reading on the scale? (A) 90.8 (B) 91.6 (C) 98.0 (D) 98.5 2 Why would scientists develop a new scientific model? (A) The old model has been in place for a long time. (B) The scientists who first developed the old model have died. (C) Results are obtained that cannot be explained by the old model. (D) No experiments related to the old model have been done recently. 3 Which of the following is the most important characteristic of a useful hypothesis? (A) It is based on results of previous experiments. (B) It can be tested by observation or experiment. (C) It is consistent with current ideas and theories. (D) It is as different as possible from other hypotheses. –4– 2002 SCT • SCIENCE • SECTION 1 4 The diagram represents a distant galaxy. What instrument would be most useful to collect information about a distant galaxy? (A) Light microscope (B) Light telescope (C) Radio telescope (D) Satellite 5 The scale diagram shows an estimate of how long Australia’s reserves of oil, gas and coal will last. Oil = 50 years Gas = 75 years = X years Coal How long are the reserves of coal estimated to last? (A) 450 years (B) 500 years (C) 550 years (D) 1100 years –5– 2002 SCT • SCIENCE • SECTION 1 Use this diagram to answer Questions 6 and 7. Separation of land masses Millions of years ago 170 160 150 140 130 120 110 100 90 80 Asia Asiamerica W North America Laurasia Pangaea 70 E North America Euramerica Europe South America Africa Gondwana Madagascar India Antarctica Australia 6 Which land masses resulted from Asiamerica? (A) Euramerica and Laurasia (B) Laurasia and Gondwana (C) Asia and W North America (D) E North America and W North America 7 How long has Australia existed as a separate land mass? (A) 80 million years (B) 120 million years (C) 130 million years (D) 170 million years –6– 2002 SCT • SCIENCE • SECTION 1 8 Two different types of fossils are found in a rock. Which conclusion about the relative ages of the fossils is correct? (A) One fossil is older than the other. (B) The fossils are older than the rock. (C) The fossils are younger than the rock. (D) The fossils are the same age as the rock. 9 The diagram represents a carbon atom. A B C D Which label identifies an electron? (A) A (B) B (C) C (D) D 10 The formation of water from hydrogen and oxygen can be represented as follows: + What scientific idea about the formation of new compounds is represented by this? (A) Matter is created. (B) Matter becomes heavier. (C) Atoms can be rearranged. (D) Atoms can change their shape. –7– 2002 SCT • SCIENCE • SECTION 1 11 Some properties of chemicals X and Y are listed in the table. X Y reacts with acids does not react with acids does not react with Y does not react with X is soluble in water is insoluble in water melts at 60°C melts at 90°C A mixture of equal amounts of X and Y is placed in a beaker of acid at 70°C. From this information, which statement is correct? (A) X will melt and Y will dissolve. (B) X will react and Y will not melt. (C) X will not melt and Y will dissolve. (D) X will not react and Y will not melt. 12 Read the following description of substance Z. Z is a colourless liquid that is often used in school science experiments. It reacts with calcium carbonate to release carbon dioxide gas. When Z reacts with a metal such as magnesium, bubbles of hydrogen gas form. Which of the following could be the chemical formula of Z? (A) H2O (B) H2SO4 (C) NaOH (D) NH4OH 13 Why are indicators used in chemical experiments? (A) To identify chemical conditions (B) To change the colour of chemicals (C) To show when a reaction is occurring (D) To make chemical reactions occur more quickly –8– 2002 SCT • SCIENCE • SECTION 1 14 What determines the features of an organism? (A) Genes only (B) Environmental factors only (C) Genes and environmental factors (D) Genes early in life, then environmental factors later in life Use this diagram of the human female reproductive system to answer Questions 15 and 16. Fallopian tube Ovary Uterus Vagina 15 Which choice correctly shows the path that an unfertilised egg takes through the female reproductive system? (A) Fallopian tube → uterus → ovary → vagina (B) Ovary → Fallopian tube → uterus → vagina (C) Ovary → uterus → Fallopian tube → vagina (D) Vagina → uterus → Fallopian tube → ovary 16 Which of the following occurs in the uterus? (A) An unborn baby grows. (B) Eggs are produced. (C) Fertilisation (D) Ovulation –9– 2002 SCT • SCIENCE • SECTION 1 Use this information to answer Questions 17 and 18. ‘Bt cotton’ is a genetically modified strain of cotton plant. Each plant cell includes a gene from a soil bacterium, which causes the plant to make a chemical that kills caterpillars when they feed on the plant. 17 What has been transferred from a soil bacterium to Bt cotton plants? (A) DNA (B) Cotton (C) Caterpillars (D) Chromosomes 18 How has the change in Bt cotton been produced? (A) By using insecticides (B) By using radioactivity (C) By using biotechnology (D) By natural selection – 10 – 2002 SCT • SCIENCE • SECTION 1 Use this information to answer Questions 19–21. Two active metals X and Y were placed in separate containers of dilute acid. The volumes of gas produced as the metals reacted with acid were recorded at regular intervals. The results are shown in the graph. Volume of gas Metal X Metal Y 0 5 10 15 20 25 30 Time (minutes) 19 Which statement about the chemical reactions in the first 5 minutes is correct? (A) X produces gas faster than Y. (B) Y produces gas faster than X. (C) X and Y produce gas equally quickly. (D) There is insufficient information to decide which metal produces gas faster. 20 What is the best explanation for the shape of the graph for metal Y after 5 minutes? (A) A large amount of Y was added to the acid. (B) Y stopped producing gas at 5 minutes. (C) More Y was used than X. (D) All Y was used up before 5 minutes had passed. 21 What names could be given to metals X and Y? (You may refer to the Periodic Table on page 38 to help you answer this question.) X Y (A) iron magnesium (B) zinc copper (C) sodium aluminium (D) sodium magnesium – 11 – 2002 SCT • SCIENCE • SECTION 1 22 This electrical circuit was set up. 1 A 2 X Y Switch 1 is now closed. Which globe(s) will light up? (A) X only (B) Y only (C) Both X and Y (D) Neither X nor Y 23 Which of the following contributes to the greenhouse effect? (A) Extensive use of fossil fuels (B) The increase in sea level (C) Widespread planting of forests for timber (D) The steady increase in average world temperatures 24 Which of the following is a scientific reason for continuing to investigate the greenhouse effect? (A) To genetically engineer crops that will feed more people (B) To make more accurate predictions about climate change (C) To better estimate costs of damage from increased storm activity (D) To provide evidence for land disputes caused by rising sea levels – 12 – 2002 SCT • SCIENCE • SECTION 1 Use this diagram to answer Questions 25 and 26. Glass sheet Water level Carbon dioxide Water snail Strap weed Carbon dioxide Oxygen Oxygen Waste Gravel 25 Sand If this diagram was in a science textbook, what would be its most suitable title? (A) Picture of an aquarium (B) How to set up an aquarium (C) Cycling of materials in an aquarium (D) How humans affect organisms in an aquarium 26 Which of the following are biotic features of this aquarium? (A) Sand and waste (B) Glass sheet and gravel (C) Oxygen and carbon dioxide (D) Water snail and strap weed – 13 – 2002 SCT • SCIENCE • SECTION 1 Use this information to answer Questions 27–29. The table shows how the speeds of four objects (A, B, C and D) vary over time. Speed of object (m/s) 27 Time (seconds) A B C D 0 12 10 0 4 1 9 20 5 4 2 6 30 20 4 3 3 40 40 4 Which object is slowing down? (A) A (B) B (C) C (D) D 28 Which object has no net force acting on it? (A) A (B) B (C) C (D) D 29 Which object is accelerating most rapidly over the 3 seconds? (A) A (B) B (C) C (D) D – 14 – 2002 SCT • SCIENCE • SECTION 1 Use this information to answer Questions 30 and 31. Gum tree genes to be mapped Scientists have launched a project to map the genetic structure of eucalypts, commonly known as gum trees. The project is expected to identify stronger and faster growing eucalypts. Eucalypts have become important for hardwood production worldwide. ‘We’re hoping we can identify genetic components of eucalypts that lead to better wood structure, faster growth rates and more disease resistance . . . to inform us about how to breed better quality eucalypts for forestry.’ Professor Mattick said researchers believed a gum tree’s genetic structure could contain up to 30 000 different genes. Only one other plant, the Arabidopsis, has been completely genetically mapped. 30 What is one thing the scientists hope to improve? (A) The wood structure (B) The number of natural forests (C) The trees’ genetic components (D) The number of genes in eucalypts 31 Why are scientists carrying out this research? (A) To replace hardwood production worldwide (B) To breed better quality eucalypts for forestry (C) To use our natural forests for timber production (D) To make a complete genetic map of the plant Arabidopsis – 15 – 2002 SCT • SCIENCE • SECTION 1 32 Four circuits containing identical power sources and light globes were constructed as shown. In which circuit would the current be the smallest? (A) (B) 10 V 10 V (D) (C) 10 V 33 10 V Which of the following is a natural way that large amounts of carbon dioxide are added to the Earth’s atmosphere? (A) Volcanic eruptions (B) Formation of fossil fuels (C) Photosynthesis by plants (D) Movement of crustal plates – 16 – 2002 SCT • SCIENCE • SECTION 1 Use this information to answer Questions 34 and 35. A recent study has shown that some children who are given antibiotics early in life have an increased risk of developing asthma, hay fever and eczema. The researchers collected data from 1881 children. They compared the incidence of asthma, hay fever and eczema in children who had been given antibiotics early in their lives with those who had not. 34 What conclusion could be drawn from this study? (A) Antibiotics should not be given to very young children. (B) Asthma, hay fever and eczema are caused by antibiotics. (C) Children who are given antibiotics early in their lives will develop asthma. (D) Some children who are given antibiotics early in their lives develop asthma, hay fever and eczema. 35 Why is this study an example of a fair test? (A) The researchers tested several variables. (B) The researchers used a control group. (C) The researchers used a small sample size. (D) The researchers recorded information that was easy to collect. – 17 – 2002 SCT • SCIENCE • SECTION 1 Use this information to answer Questions 36 and 37. Amount of carbon-14 remaining (g) When carbon-14 undergoes radioactive decay, it forms nitrogen-14. The graph shows the amount of carbon-14 remaining over time. At time = 0, there was no nitrogen-14 present. 100 75 50 25 0 36 5.7 11.4 17.1 22.8 Time (× 103 year) Which graph shows the amount of nitrogen-14 produced over the same period? (B) Amount of nitrogen-14 produced (g) Amount of nitrogen-14 produced (g) (A) Time Time (D) Amount of nitrogen-14 produced (g) Amount of nitrogen-14 produced (g) (C) Time 37 Time What is the approximate amount of nitrogen-14 produced after 8 × 103 years? (A) 23 g (B) 37 g (C) 63 g (D) 77 g – 18 – 2002 SCT • SCIENCE • SECTION 1 Use this information to answer Questions 38–41. The diagram represents geological activity at plate boundaries. P Q R S Oceanic ridge Oceanic plate Continental plate Oceanic plate Continental plate Rising magma Cooling magma sinks 38 Ocean Cooling magma sinks What can be correctly inferred from this diagram? (A) New crust is forming at the oceanic ridge. (B) The cooling magma pushes the oceanic plates together. (C) The continental plates are moving under the oceanic plates. (D) The two continental plates move towards each other and buckle the crust upwards. 39 Which location is least likely to have volcanic eruptions? (A) P 40 (B) Q (C) R (D) S How does the age of rocks farther from the oceanic ridge compare with that of rocks closer to the oceanic ridge? (A) It is older. (B) It is younger. (C) It is identical. (D) It varies with the size of the ocean. 41 The convection currents causing crustal movement are found in which layer of the Earth? (A) Asthenosphere (B) Crust (C) Mantle (D) Outer core – 19 – 2002 SCT • SCIENCE • SECTION 1 Use this information to answer Questions 42–46. The sector graph shows the average composition of nodules of minerals found on the ocean floor. Components of nodules Key 42 Aluminium Oxygen Calcium Silicon Iron Water Manganese Other Which component is most abundant? (A) Aluminium (B) Iron (C) Manganese (D) Water 43 Which component is a compound? (A) Manganese (B) Oxygen (C) Silicon (D) Water 44 What is meant by ‘Other’ in the key? (A) Sodium chloride (B) Sand and calcium carbonate (C) Small percentages of substances not named (D) Fragments of shells, bones, coral and marine remains 45 What is the percentage of iron in the nodules? (A) 5 (B) 10 (C) – 20 – 20 (D) 35 2002 SCT • SCIENCE • SECTION 1 Which column graph matches the information in the sector graph? 47 Oxygen Silicon Oxygen Silicon Calcium Calcium Silicon Oxygen Calcium (D) Aluminium (C) Aluminium Silicon Oxygen Calcium (B) Aluminium (A) Aluminium 46 The diagram shows two gear wheels. The number of teeth on each wheel is shown. Wheel X makes one complete rotation in a clockwise direction as shown. Y 40 teeth 80 teeth X How many rotations will wheel Y make, and in which direction will it turn? Number of rotations Direction of rotation (A) 2 Anticlockwise (B) Clockwise (C) 2 –12 Anticlockwise (D) –12 Clockwise – 21 – 2002 SCT • SCIENCE • SECTION 1 Use this information to answer Questions 48–50. The graph shows: • the present-day temperature and brightness of most stars in the Universe (dotted line X); • the predicted evolutionary path of our Sun (solid line Y) including its present-day conditions. 1 000 000 ts ian eg Blu Brightness (compared with our Sun) 100 000 10 000 Line X 1 000 Line Y 100 10 Present-day Sun 1 Form interstation from ellar cl oud 0.001 50 30 10 Temperature (× 103 K) – 22 – arfs dw Red White dwarf 1 2002 SCT • SCIENCE • SECTION 1 48 According to this information, what will be the final evolutionary stage of our Sun? (A) Blue giant (B) Interstellar cloud (C) Red dwarf (D) White dwarf 49 How did our Sun change during its initial formation from interstellar cloud? (A) It became larger. (B) It became smaller. (C) It became hotter. (D) It became colder. 50 How much brighter than our Sun is a blue giant of temperature 30 000 K? (A) 5 times (B) 10 times (C) 1 000 times (D) 10 000 times End of Section 1 Go on to Section 2 – 23 – 2002 SCT • SCIENCE • SECTION 1 BLANK PAGE – 24 – © Board of Studies NSW 2002 Directions for Section 2 This section has FOUR parts Part A Questions Part B Questions Part C Questions Part D Questions 2002 SCHOOL CERTIFICATE TEST 51–60 61–62 63–64 65–66 (10 marks) (11 marks) (14 marks) (15 marks) • Complete your answers to Section 2 Part A in the boxes provided on the separate answer sheet • Complete your answers to Section 2 Parts B–D on the lines provided on pages 29 to 37 • Write your Centre Number and Student Number at the top of pages 29, 31 and 35 Instructions for answering questions in Section 2 Part A 11 November • Completing the boxes Write firmly and clearly. Your answer must be written from left to right. Use block letters for words. Numbers must be used for numerical answers. Decimal points and negative signs must be clearly shown in separate boxes. Do NOT let any part of the letter or number touch the sides of the answer boxes. SCIENCE SECTION 2 50 marks Sample 1: –7 ÷ 2 = – Sample 2: How many days are in a week? 7 Sample 3: What is the fifth month? M A Y 3 . days If you think you have made a mistake, put a line through the incorrect answer and write the correct one above the box. M A Y J U N E S12 5 – 25 – 2002 SCT • SCIENCE • SECTION 2 • PART A PART A Complete your answers to Questions 51–60 on the Section 2 Part A Answer Sheet. 51 Complete the following chemical equation: heat copper oxide → copper + .............................................. 52 Name the type of chemical reaction represented by the equation in Question 51. 53 What is the name of the tube through which sperm leave the male human body? 54 Consider the three examples below. • Car exhaust can make breathing difficult. • Litter from a beach party makes the area untidy. • Suds from washing machines are carried into rivers and oceans. What is ONE word that describes the exhaust, litter and suds in these examples? 55 Name the scientist who proposed the relationship: force = mass × acceleration 56 Use ONE word to complete this sentence: All waves are carriers of ........................................ 57 What feature of a wave is represented by the distance between P and Q in the diagram? P Q – 26 – 2002 SCT • SCIENCE • SECTION 2 • PART A 58 What type of electromagnetic radiation is detected as heat? 59 An electrical circuit is set up so that when one light in the circuit stops working, the other lights stay on. What type of electrical circuit is this? 60 Use ONE word to complete this sentence: The movement of crustal plates on Earth’s surface is explained by the Theory of Plate ............................ End of Section 2 Part A Go on to Part B – 27 – 2002 SCT • SCIENCE • SECTION 2 • PART A BLANK PAGE – 28 – © Board of Studies NSW 2002 2002 SCT • SCIENCE • SECTION 2 • PART B CENTRE NUMBER STUDENT NUMBER PART B • Write your Centre Number and Student Number at the top of this page. • Complete your answers in this booklet. Marks Question 61 (3 marks) Outline the theory of evolution by natural selection. ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... S13 – 29 – 3 2002 SCT • SCIENCE • SECTION 2 • PART B Marks Question 62 (8 marks) Scientific investigations can be carried out individually or in groups (teams). Describe TWO advantages of each approach. Individual approach (i) ............................................................................................................................... 2 ............................................................................................................................... ............................................................................................................................... (ii) ............................................................................................................................... 2 ............................................................................................................................... ............................................................................................................................... Group approach (i) ............................................................................................................................... 2 ............................................................................................................................... ............................................................................................................................... (ii) ............................................................................................................................... ............................................................................................................................... ............................................................................................................................... End of Section 2 Part B Go on to Part C – 30 – © Board of Studies NSW 2002 2 2002 SCT • SCIENCE • SECTION 2 • PART C CENTRE NUMBER STUDENT NUMBER PART C • Write your Centre Number and Student Number at the top of this page. • Complete your answers in this booklet. Part C continues on page 32 S14 – 31 – 2002 SCT • SCIENCE • SECTION 2 • PART C Question 63 (7 marks) Table 1 shows the average distance from the Sun and the average orbital speed of some of the planets in our solar system. Table 2 shows the five largest asteroids and their average distances from the Sun. Table 1 Planet Table 2 Average distance from Sun in astronomical units (AU) Average orbital speed (km/s) Mercury 0.4 48.0 Vesta 2.4 Venus 0.7 35.0 Juno 2.7 Earth 1.0 30.0 Ceres 2.8 Mars 1.5 24.0 Pallas 2.8 Jupiter 5.2 13.0 Hygeia 3.2 Saturn 9.6 10.0 Asteroid Question 63 continues on page 33 – 32 – Average distance from Sun (AU) 2002 SCT • SCIENCE • SECTION 2 • PART C Marks Question 63 (continued) (a) On the grid provided, draw a line graph of the average distance from the Sun and the average orbital speed for the planets listed. 5 Distance from Sun (AU) (b) Use the graph to predict the range of orbital speeds for the asteroids listed in Table 2. ............................................................................................................................... ............................................................................................................................... Please turn over – 33 – 2 2002 SCT • SCIENCE • SECTION 2 • PART C Marks Question 64 (7 marks) A student wants to test the idea that strawberry plants grow better in soil at 10°C than in soil at 20°C. Design an investigation to test this idea. ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... ......................................................................................................................................... End of Section 2 Part C Go on to Part D – 34 – © Board of Studies NSW 2002 7 2002 SCT • SCIENCE • SECTION 2 • PART D CENTRE NUMBER STUDENT NUMBER PART D • Write your Centre Number and Student Number at the top of this page. • Complete your answers in this booklet. Part D continues on page 36 S15 – 35 – 2002 SCT • SCIENCE • SECTION 2 • PART D Marks Question 65 (8 marks) Colonies of fire ants have been discovered in towns in northern New South Wales. Fire ants can be poisoned using a pesticide. Some scientists suggested spraying pesticide on infested areas. Environmental scientists are worried about the effects the pesticide might have on the environment. (a) Outline TWO concerns the environmental scientists might have. 4 ............................................................................................................................... ............................................................................................................................... ............................................................................................................................... ............................................................................................................................... ............................................................................................................................... ............................................................................................................................... ............................................................................................................................... ............................................................................................................................... (b) Other scientists have suggested the introduction of a predator to kill the fire ants instead of spraying pesticide. Assess ONE possible impact of this strategy. ............................................................................................................................... ............................................................................................................................... ............................................................................................................................... ............................................................................................................................... ............................................................................................................................... ............................................................................................................................... ............................................................................................................................... ............................................................................................................................... – 36 – 4 2002 SCT • SCIENCE • SECTION 2 • PART D Marks Use the Periodic Table on page 38 to answer Question 66. Question 66 (7 marks) (a) (i) Name the element with atomic number 52. 1 ................................................................................................................... (ii) What is the symbol for the element with mass number 19.00? 1 ................................................................................................................... (b) The diagram indicates that the mass of one oxygen atom is sixteen times greater than the mass of one hydrogen atom. 2 H H H H H H H H H H H H H H H H Oxygen Approximately how many helium atoms have the same mass as ONE sulfur atom? Justify your answer by showing your working. ............................................................................................................................... ............................................................................................................................... ............................................................................................................................... (c) Explain how the elements are grouped in the Periodic Table. ............................................................................................................................... ............................................................................................................................... ............................................................................................................................... ............................................................................................................................... ............................................................................................................................... ............................................................................................................................... Please turn over – 37 – 3 Yttrium 57–71 Barium 88 Ra [226.0] Radium Caesium 87 Fr [223.0] – 38 – © Board of Studies NSW 2002 Francium Actinides 89–103 Lanthanides Rutherfordium 104 Rf [261.1] Hafnium 72 Hf 178.5 Zirconium Dubnium 105 Db [262.1] Tantalum 73 Ta 180.9 Niobium Seaborgium 106 Sg [263.1] Tungsten 74 W 183.8 Molybdenum Bohrium 107 Bh [264.1] Rhenium 75 Re 186.2 Technetium 43 Tc [98.91] Manganese 56 Ba 137.3 42 Mo 95.94 Chromium Strontium 41 Nb 92.91 Vanadium 55 Cs 132.9 40 Zr 91.22 Rubidium Titanium 39 Y 88.91 38 Sr 87.62 Scandium Calcium 37 Rb 85.47 25 Mn 54.94 Potassium 24 Cr 52.00 20 Ca 40.08 19 K 39.10 23 V 50.94 Magnesium Sodium 22 Ti 47.87 12 Mg 24.31 11 Na 22.99 21 Sc 44.96 Beryllium Lithium Ununnilium 109 Mt [268] Meitnerium Hassium End of test 110 Uun — Iridium Platinum 78 Pt 195.1 Palladium 46 Pd 106.4 Nickel 28 Ni 58.69 108 Hs [265.1] 77 Ir 192.2 Rhodium 45 Rh 102.9 Cobalt 27 Co 58.93 111 Uuu — Gold 79 Au 197.0 Silver 47 Ag 107.9 Copper 29 Cu 63.55 Unununium Name of element Symbol of element Osmium 76 Os 190.2 Ruthenium 44 Ru 101.1 Iron 26 Fe 55.85 Gold 79 Au 197.0 Mass Number KEY 3 Li 6.941 Atomic Number 4 Be 9.012 Hydrogen 1 H 1.008 Use the Periodic Table to answer the question on page 37. Ununbium 112 Uub — Mercury 80 Hg 200.6 Cadmium 48 Cd 112.4 Zinc 30 Zn 65.39 113 Thallium 81 Tl 204.4 Indium 49 In 114.8 Gallium 31 Ga 69.72 Aluminium 13 Al 26.98 Boron 5 B 10.81 Ununquadium 114 Uuq — Lead 82 Pb 207.2 Tin 50 Sn 118.7 Germanium 32 Ge 72.61 Silicon 14 Si 28.09 Carbon 6 C 12.01 115 Bismuth 83 Bi 209.0 Antimony 51 Sb 121.8 Arsenic 33 As 74.92 Phosphorus 15 P 30.97 Nitrogen 7 N 14.01 Ununhexium 116 Uuh — Polonium 84 Po [210.0] Tellurium 52 Te 127.6 Selenium 34 Se 78.96 Sulfur 16 S 32.07 Oxygen 8 O 16.00 117 Astatine 85 At [210.0] Iodine 53 I 126.9 Bromine 35 Br 79.90 Chlorine 17 Cl 35.45 Fluorine 9 F 19.00 Ununoctium 118 Uuo — Radon 86 Rn [222.0] Xenon 54 Xe 131.3 Krypton 36 Kr 83.80 Argon 18 Ar 39.95 Neon 10 Ne 20.18 Helium 2 He 4.003 2002 SCT • SCIENCE • SECTION 2 • PART D
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