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PERIOD
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Chapters 4-5 TEST REVIEW
Remember you may use one 3xS card (one side only) for notes. On the test there will be review questions
from previous tests and quizzes.
The following
10 questions are TRUE or FALSE.Write TRUE or FALSEon the blank next to each question.
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Isotopes are forms of an element that have the same number of protons but a different
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In a neutral atom the number of protons is equal to the number of electrons.
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Atoms in chemical reactions are combined, separated, or rearranged.
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Robert Millikan determined the charge of an electron using an oil-drop apparatus.
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As the amount of energy carried by a wave increases, its wavelength decreases.
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When a chemical change occurs, the products have a greater mass than the reactants.
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The two subatomic particles found in the nucleus of an atom are protons and neutrons.
J.J. Thomson developed the first atomic theory based on evidence.
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The scientist who performed experiments with alpha particles and gold foil to determine
that atoms consisted of a dense, positively charged center which electrons orbited around was Ernest
Rutherford.
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A change in state is a 'chemical change because ice and water do not resemble one another.
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The following
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20 questions are MULTIPLE CHOICE. Write A, B, C, or D on the blank next to each question.
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How many electrons are in a neutral atom of sodium (Na)?
a. 22
c.
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Which of the following has a mass of 1 amu?
a. Electrons YI8 <i 0 a ""1.\
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b. Neutrons
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Protons
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Both neutrons and protons
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The Aufbau principles states that an electron
a. Can have only one spin number
b. Must enter an s orbital
(!)
Occupies the lowest available energy level
d. Must be paired with another electron
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14.
Which scientist described a positively charged core ("nucleus") in the middle of a lot of
empty space?
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lS) Rutherford
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d.
Which of the following colors has the highest energy?
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a. Red
c.
Orange
d.
Blue
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Violet
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From the table below~~
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are isotopes of one another?
Atom
Protons
Neutrons
1
8
10
Electrons
8
2
10
9
10
3
9
9
9
4
8
11
8
c.
a. Atoms 1 & 2
@Atoms1&4
b. Atoms 2 & 3
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17.
The letter designations for the first four sublevels with the maximum number of electron~
that can be accommodated
in each sublevel are:
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a. s:l, p:3, d:5, f:7
b. s:l, p:2, d:3, f:4
s:2, p:6, d:10, f:14
d. s:2, p:4, d:6, f:8
A Which of the following needs to happen for an electron
18.
grou nd state to an excited state?
(9 Energy must be absorbed
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Atoms 1 & 3
in an atom to change from the
b. The electron must make a transition from a higher to a lower energy level
c.
Energy must be released
d. Radiation must be emitted
As the mass number of an element's isotopes of BReleR1eRt increases, the number of
19. ~
protons
20.
a. Decreases
c.
b. Increases
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c.
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B
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23.
Electrons
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c.
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d.
115
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How many electrons are needed to completely fill the fourth en~}'I:vfl?
c.
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of the following
a. Any chemical property
b. Density
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b. 18
25.
d.
How many neutrons does Bromine-80 have?
a. 8
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d. Protons
a.35
24.
c.
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Which of the following takes up most of the volume of an atom?
a. Nuclides
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Chadwick
b. Rutherford
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Which of the following atomic sublevels has the next highest energy after 3s?
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Remains the same
Which of the following scientists described an atom made of a solid positively charged
substance with electrons dispersed throughout
21.
Divides in half
is NOT an i1ensive
i~ehde~
property?
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26.
Which of the following states that a maximum of two electrons can occupy a single atomic
orbital, but only if the electrons have opposite spins?
a. Aufbau principle
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28.
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Pauli exclusion principle
c.
Hund's rule
d.
Noble-gas notation
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How many valence electrons does Rubidium have?
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1
c.
b.
2
d. 8
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Which of the following
2
a. 1s 2s22p63s3
CE) 1s22s22p63s2
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is the complete electron configuration
c.
for the Magnesium atom?
1s22s22p43s2
d.
1s22s22p23s2
Which of the following is the element that has the ground-state
2
electron configuration
2
[Kr]5s 4d ?
CD Zirconium
a. Titanium
b. Strontium
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30.
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d.
oxide contains 10.8 g of magnesium. What is the percent of
oxygen by mass in this compound?
a. 89.2%
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b. 14.2%
Magnesium
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c.
43.2%
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15 questions are SHORT ANSWER. Answer them as completely
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31. Write the nuclear symbol for the Silver-107 isotope.
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32. Write the complete electron configuration
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for the element Strontium.
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33. Write the nuclear symbol for the isotope of an element with atomic number 80 and mass number 202.
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34. Draw the electron-dot
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structure for Oxygen.
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35. Write the orbital notation for the element Cobalt.
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36. Write the electron configuration
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37. List the colors of the visible spectrum from highest frequency to lowest frequency.
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41. Silver has two isotopes: l~~Ag, which has a mass of 106.905 amu and a percent abundance of 52.00%,
and l~~Ag, which has a mass of 108.905 amu and a percent abundance of 48.00%. What is the atomic
mass of silver?
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spectrum it produces? EXPLAINyour answer
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43. Complete the following table:
Element
Mass Number
Atomic Number
Sodium
23
II
# of Electrons
# of Protons
12
II
11
s-q
27
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17
27
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22
18
1
1
0
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50
50
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Cobalt
Co
Argon
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Hydrogen
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Sh
# of Neutrons
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44. How is light produced from an atom? (You may draw a diagram as long as it is clearly labeled.)
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45. Identify both a physical change and a chemical change that could be done to a piece of pa~r.
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