Matching
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Match each item with the correct statement below. a. | proton | d. | electron | b. | nucleus | e. | neutron | c. | atom |
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1.
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a subatomic particle with no charge that is found in the nucleus
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2.
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the smallest particle of an element that is comprised of smaller
particles.
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3.
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the central part of an atom, containing protons and neutrons
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4.
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a negatively charged subatomic particle found outside the nucleus
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5.
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a positively charged subatomic particle that is found in the nucleus
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Match each item with the correct statement below. a. | mass number | c. | atomic number | b. | isotopes | d. | atomic mass |
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6.
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atoms with the same number of protons, but different numbers of neutrons in the
nucleus of an atom
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7.
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the number of protons in the nucleus of an element
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8.
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atoms of the same element with different numbers of neutrons
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9.
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the total number of protons and neutrons in the nucleus of an atom
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Match each item with the correct statement below. a. | group | c. | Mendeleev | b. | period | d. | Moseley |
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10.
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horizontal row in the periodic table
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11.
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vertical column in the periodic table
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12.
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created the first periodic table and predicted undiscovered elements
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13.
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reordered the periodic table in order of increasing atomic number
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Multiple Choice Identify the choice that best completes the
statement or answers the question.
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14.
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An atom has 12 protons and 13 neutrons. Which is the correct chemical symbol for
this atom?
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15.
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What is the mass number of the atom shown above?
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16.
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Which is the correct symbol for this atom shown above?
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17.
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The above figure is of a/an:
a. | anion | b. | isotope | c. | cation | d. | subion |
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18.
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Which element has 14 protons?
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19.
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Which is the number of neutrons in ?
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20.
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Elements within a veritcal GROUP on the periodic table have similar properties
because:
a. | they have the same number of valence electrons. | b. | they have the same
the same number of energy levels. | c. | they have the same number of
protons. | d. | they have the same number of neutrons. |
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21.
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Most NONMETALS are
a. | ductile. | b. | good conductors of heat and
electricity. | c. | gases at room temperature | d. | malleable. |
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22.
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Which group of elements shares characteristics with both metals and nonmetals
and are used to make semiconductors?
a. | salts | b. | metalloids | c. | halogens | d. | alloys |
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23.
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Elements that are in the same PERIOD
a. | have the same number of valence electrons. | b. | have different
numbers of energy levels. | c. | have the same number of energy
levels. | d. | have similar properties. |
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Numeric Response Place the following in the numerical order of
discovery (1 being the earliest- 5 being the most recent):
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24.
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_____ Bohr- determined that electrons reside in energy levels that surround the
nucleus
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25.
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_____ Rutherford: Discovered the positive nucleus and that atoms were mostly
empty space.
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26.
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_____ Quantum mechanical model- Electrons reside
within orbits in energy levels whose location is based on probability
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27.
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_____ Thomson- discovered the electron. Placed
electrons randomly in a positive surrounding (blueberry muffin model)
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28.
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_____ Dalton- Atoms were solid speres with no smaller particles (like
marbles)
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Use the following for Questions 29-35
When Answering, MAKE SURE THAT YOU MATCH THE LETTER CASE EXACTLY
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29.
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Which of the Symbols SHOWN is that of an Alkali Metal?
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30.
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Which of the Symbols SHOWN is that of a Noble Gas?
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31.
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Which of the Symbols SHOWN is that of a Halogen?
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32.
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Which of the Symbols SHOWN is that of an Alkaline Earth Metal?
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33.
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Which of the Symbols SHOWN is that of a Metalloidl?
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34.
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Which of the following will GAIN electrons to be like the nearest noble gas, Na
or F?
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35.
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Which of the following will form a CATION, Na or F?
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