Name___________________________________
The Periodic Table - P. 498
Physical Science Classwork 02/22/17
PS.06, 10, 12, 15
1) The entire known universe is made up of only about one hundred basic types of matter.
2) Who is mainly credited with developing the modern periodic table?
T or F
2)
3) By the time of Mendeleev, scientists had found the majority of the naturally occurring elements that we
recognize today.
4) What criterion is used to arrange the elements in rows and columns on the periodic table?
A) similarity in size
B) similarity in melting point
C) similarity in properties
D) similarity in symbol
E) similarity in date of discovery
4)
5) What did Mendeleev do on his periodic table when an element did not seem to fit into a column
and had significantly higher mass than the previous element?
A) He made up names.
B) He changed the properties of the elements.
C) He left blanks for undiscovered elements.
D) He averaged the masses.
5)
6) Who first arranged the elements according to the charge of the nucleus?
6)
7) Explain how Moseley's periodic arrangement of the elements differed from Mendeleev's.
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8) Using the periodic table, give an example of two elements that show why Moseley's
arrangement works better than Mendeleev's.
9) The modern periodic table is arranged in order of increasing atomic _____.
A) number
B) mass
C) charge
8)
9)
D) radius
10) The periodic law states that there is a periodic repetition of the physical and chemical properties of
elements _____.
A) when they are arranged in order of increasing atomic radii
B) if only metals are considered
C) when they are arranged in order of increasing atomic number
D) when they are arranged in order of increasing atomic mass
ARRANGEMENT OF THE PERIODIC TABLE - P. 502
11) The vertical columns on the periodic table are also called _____.
10)
11)
12) Which of the following elements is in the same group as phosphorus (P)?
A) oxygen
B) magnesium
C) nitrogen
D) carbon
13) Which of the following elements is in the same group as indium (In)?
A) carbon
B) oxygen
C) boron
D) magnesium
12)
13)
T or F
14) The horizontal rows on the periodic table are also called _____.
14)
15) How many energy levels did Bohr discover for Hydrogen?
15)
16) Each period number in the periodic table corresponds to _____.
A) an atomic mass
B) a principal energy level
C) a type of metal
D) an atomic number
16)
17) Which of the following elements is in the same period as phosphorus?
A) nitrogen
B) oxygen
C) carbon
17)
18) Which of the following elements is in the same period as selenium?
A) calcium
B) chlorine
C) oxygen
D) magnesium
D) magnesium
18)
19) What is the most important factor in determining the chemical properties of each individual element?
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20) _____________ are the electrons in an atom's highest energy level (usually the s and p sublevels).
A) k-capture electrons
B) quantum electrons
C) valence electrons
D) inner shell electrons
21) How many valence electrons does sodium (Na) have?
21)
22) How many electrons are in the highest occupied energy level of magnesium (Mg)?
22)
23) How many electrons are in the highest occupied energy level of arsenic (As)?
23)
24) What is the number of electrons in the outermost energy level of a(n) tellurium atom?
24)
25) How many electrons are in the highest occupied energy level of fluorine (F)?
25)
20)
DOT DIAGRAMS - P. 504
26) In an electron dot diagram, the dots represent _____ in the atom.
A) the protons
B) all the electrons
C) the neutrons
D) the valence electrons
26)
27) What is the relationship between valence electrons and electron dot structures?
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28) Draw the dot notation for lithium (Li) .
29) Draw the dot notation for sodium (Na) .
30) Draw the dot notation for hydrogen (H) .