Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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Which
list of elements contains only metals? a. | carbon, iodine, tin | c. | helium, iron, copper | b. | tin, copper,
cesium | d. | iodine, carbon,
argon | | | | |
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2.
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Which
list of elements contains only metals? a. | radon, krypton, tin | c. | neon, iron, silver | b. | tin, silver,
platinum | d. | krypton, radon,
oxygen | | | | |
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3.
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Group
7A of the periodic table contains the a. | most reactive nonmetals. | c. | least reactive nonmetals. | b. | most reactive
metals. | d. | least reactive
metals. | | | | |
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4.
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The
column of the far left of the periodic table contains the a. | least reactive
metals. | c. | most reactive
metals. | b. | least reactive nonmetals. | d. | most reactive nonmetals. | | | | |
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5.
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Two
highly reactive elements in Period 2 are the metal lithium and the a. | metalloid
arsenic. | c. | nonmetal
fluorine. | b. | nonmetal selenium. | d. | nonmetal krypton. | | | | |
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6.
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Two
highly reactive elements in Period 4 are the metal potassium and the a. | nonmetal
krypton. | c. | nonmetal
bromine. | b. | nonmetal selenium. | d. | metalloid arsenic. | | | | |
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7.
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Compared with Group 2A elements, Group 6A elements have a. | more atoms in
the ground state. | c. | more
isotopes. | b. | more valence electrons. | d. | fewer valence electrons. | | | | |
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8.
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Compared with Group 3A elements, Group 2A elements have a. | fewer valence
electrons. | c. | more atoms in
the ground state. | b. | more valence electrons. | d. | more isotopes. | | | | |
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9.
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Compared with Group 2A elements, Group 3A elements have a. | more
isotopes. | c. | fewer valence
electrons. | b. | more atoms in the ground state. | d. | more valence electrons. | | | | |
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10.
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Compared with Group 4A elements, Group 2A elements have a. | fewer valence
electrons. | c. | more valence
electrons. | b. | more isotopes. | d. | more atoms in the ground state. | | | | |
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11.
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Compared with Group 5A elements, Group 2A elements have a. | more
isotopes. | c. | more atoms in
the ground state. | b. | fewer valence electrons. | d. | more valence electrons. | | | | |
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12.
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Compared with Group 1A elements, Group 3A elements have a. | more valence
electrons. | c. | more
isotopes. | b. | fewer valence electrons. | d. | more atoms in the ground state. | | | | |
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13.
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Compared with Group 7A elements, Group 4A elements have a. | more atoms in
the ground state. | c. | more
isotopes. | b. | more valence electrons. | d. | fewer valence electrons. | | | | |
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14.
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Compared with Group 6A elements, Group 3A elements have a. | more
isotopes. | c. | more valence
electrons. | b. | fewer valence electrons. | d. | more atoms in the ground state. | | | | |
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15.
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Compared with Group 3A elements, Group 1A elements have a. | more valence
electrons. | c. | more atoms in
the ground state. | b. | fewer valence electrons. | d. | more isotopes. | | | | |
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16.
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A
member of the boron family has three valence electrons, while a member of the nitrogen family
has a. | none. | c. | four. | b. | five. | d. | three. | | | | |
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17.
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An
alkali metal has one valence electron, while an alkaline earth metal has a. | two. | c. | four. | b. | three. | d. | none. | | | | |
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18.
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A
member of the carbon family has four valence electrons, while a member of the oxygen family
has a. | three. | c. | six. | b. | four. | d. | none. | | | | |
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Completion
Complete each sentence or
statement.
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19.
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When
Mendeleev organized elements in his periodic table in order of increasing mass, elements with similar
properties were in the same ____________________.
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20.
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Mendeleev organized elements in his periodic table in order of increasing
____________________.
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21.
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Mendeleev predicted that the undiscovered element he called eka-aluminum would
have a(an) ____________________ melting point.
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22.
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Mendeleevs periodic table was useful because it enabled scientists to predict
properties of unknown ____________________.
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23.
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The
pattern of repeating properties of elements revealed in the periodic table is known as the
____________________.
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24.
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Boron
is one block to the left of carbon in the periodic table. The atomic number of carbon is 6. The
atomic number of boron is ____________________.
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25.
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The
atomic mass unit (amu) is defined as one twelfth the mass of a(an) ____________________12
atom.
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26.
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To
determine the atomic mass of an element, you would take a(an) ____________________ average of the
isotopes that make up that element.
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27.
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Elements can be classified as metals, nonmetals, and
____________________.
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28.
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Metals that grow dull when exposed to air are more ____________________ than metals
that remain shiny.
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29.
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The
elements cesium (Cs), Barium (Ba), and lutetium (Lu) appear from left to right in Period 6 of the
periodic table. Among these elements, the most reactive is ____________________.
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30.
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The
elements potassium (K), calcium (Ca), and scandium (Sc) appear from left to right in Period 4 of the
periodic table. Among these elements, the most reactive is ____________________.
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31.
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The
elements sodium (Na), magnesium (Mg), and aluminum (Al) appear from left to right in Period 3 of the
periodic table. Among these elements, the most reactive is ____________________.
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32.
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From
left to right across a period in the periodic table, elements become less ____________________ and
more ____________________ in their properties.
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33.
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Element 3, lithium, has one valence electron, and element 4, beryllium, has two
valence electrons. Element 5, boron, has ____________________ valence electrons.
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34.
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Element 11, sodium, has one valence electron, and element 12, magnesium, has two
valence electrons. Element 13, aluminum, has ____________________ valence electrons.
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35.
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Hydrogen does not have the typical properties of a metal. However, hydrogen is located
above Group 1A because it has one _________________________.
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36.
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In
general, a(an) ____________________ metal will be more reactive than an alkaline earth metal in the
same period.
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37.
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The
two most reactive groups of elements in the periodic table are the alkali metals and the
____________________.
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38.
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Reactive elements, such as alkali metals and halogens, are found in nature only as
____________________.
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39.
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Fertilizers usually contain two elements from Group 5A, which are ____________________
and phosphorus.
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40.
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One
way to demonstrate reactivity among the alkaline earth metals, Group 2A, is to observe what happens
when they are placed in ____________________.
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