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1.
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Which of the following
is a difference between metals and nonmetals?
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A)
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Metals contain
electrons, nonmetals do not.
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B)
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Metals are good
conductors of electricity; nonmetals are not.
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C)
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Nonmetals are all gases
while metals are all solids.
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D)
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none of the above
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2.
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Sodium (Na) and cesium
(Cs) are members of which of the following categories?
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A)
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alkali metals
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B)
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alkaline earth metals
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C)
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Halogens
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D)
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noble gases
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3.
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Helium (He) and radon
(Rn) are members of which of the following categories?
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A)
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alkali metals
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B)
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alkaline earth metals
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C)
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Halogens
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D)
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noble gases
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4.
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Elements whose names
end with ium are usually metals; sodium is one example. Identify a nonmetal
whose name also ends with ium.
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A)
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Potassium
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B)
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Magnesium
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C)
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Helium
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D)
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Barium
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5.
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What is the difference
between an atom and a molecule?
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A)
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A molecule has more
electrons than an atom.
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B)
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An atom is charged
while a molecule is not.
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C)
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A molecule is an
aggregate of atoms, while an atom, by definition, is a single particle.
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D)
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A molecule is bigger
than an atom.
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6.
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How are allotropes
different from isotopes?
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A)
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Allotropes are ionic,
while isotopes are not.
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B)
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Allotropes are gases,
while isotopes are generally solids.
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C)
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Allotropes are single
atoms, while isotopes are aggregates of atoms.
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D)
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Allotropes are
different molecular combinations of a single element; isotopes are atoms of
the same element with different masses.
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7.
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NH4+
is an example of which of the following?
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A)
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a monatomic cation
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B)
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a monatomic anion
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C)
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a polyatomic cation
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D)
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a polyatomic anion
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8.
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Which of the following
is an element?
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A)
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N2
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B)
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NH3
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C)
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NO
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D)
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CO
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9.
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Which of the following
is a compound?
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A)
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N2
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B)
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H2
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C)
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O3
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D)
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SO2
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