Modified True/False
Indicate
whether the statement is true or false. If false, change the identified word or phrase to make the
statement true.
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1.
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When a substance burns, matter is destroyed.
_________________________
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2.
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Elements on the far right of the periodic table are classified as
nonmetals. _________________________
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3.
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Substances are either elements or mixtures.
_________________________
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4.
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Thompson's experiments led to the discovery of the neutron.
_________________________
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5.
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The closer an electron is to the nucleus, the lower its energy.
_________________________
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6.
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Every atom of the same element has the same atomic number.
_________________________
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7.
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For an atom to be neutral, the number of protons must equal the number of
neutrons. _________________________
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8.
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Matter always has mass. _________________________
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Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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9.
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Matter that has the same composition and properties throughout is called a(n)
____.
a. | substance | c. | atom | b. | mixture | d. | isotope |
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10.
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When two pure substances are combined so that each of the pure substances
retains its own properties, the result is a(n) ____.
a. | compound | c. | element | b. | mixture | d. | isotope |
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11.
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All ____ except mercury are solids at room temperature.
a. | metalloids | c. | metals | b. | nonmetals | d. | mixtures |
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12.
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In general, nonmetals are ____.
a. | good conductors of electricity | c. | good conductors of
heat | b. | malleable and ductile | d. | gases at room temperature |
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13.
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In general, metals are ____.
a. | poor conductors of heat | c. | poor conductors of
electricity | b. | brittle | d. | good conductors of heat |
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14.
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Which of these statements about matter is NOT true?
a. | During chemical changes, matter is destroyed. | b. | Matter has mass and
takes up space. | c. | Matter can be divided into pure substances and mixtures. | d. | Matter is made up of
atoms. |
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15.
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The millions of compounds that exist are made from approximately ____
elements.
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16.
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Most of the mass of an atom is found in its ____.
a. | nucleus | c. | atomic number | b. | electron cloud | d. | mass number |
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17.
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A certain atom has 26 protons, 26 electrons, and 30 neutrons. It mass number is
____.
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18.
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____ has mass and takes up space.
a. | Thought | c. | Air | b. | Light | d. | Emotion |
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19.
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What family is highlighted in the picture below?  a. | alkali metal family | c. | transition metal family | b. | alkaline earth metal
family | d. | halogen
gases |
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20.
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Using the information for Lithium below, list it’s atomic number.
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21.
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Using the information provided for Lithium in qestion 20, how many neutrons does
it have?
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22.
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The following are examples of physical properties EXCEPT ____.
a. | density | c. | color | b. | shape | d. | ability to react with
oxygen |
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23.
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All of the following are a state of matter EXCEPT ____.
a. | solid | c. | liquid | b. | gas | d. | density |
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24.
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Which of the following is an example of a physical change?
a. | evaporation in a swamp cooler | c. | digestion of a
hamburger | b. | electricity produced by a dry cell | d. | rusting of a car
body |
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25.
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Which of the following is an example of a chemical change?
a. | bending a pop can | c. | melting wax | b. | evaporation of milk | d. | burning paper |
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26.
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Viscosity is a measure of a fluid's ____.
a. | resistance to flow | c. | average kinetic energy | b. | adhesive
forces | d. | buoyancy |
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Completion
Complete each
statement.
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27.
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All matter is made up of particles called ____________________.
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28.
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Elements on the left side of the periodic table are classified as
____________________.
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29.
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For material to be classified as a pure ____________________, every bit of it
must have the same properties.
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30.
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Elements that have properties halfway between those of metals and nonmetals, are
classified as ____________________.
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31.
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Chlorine-35 and chlorine-37 are examples of ____________________.
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Short Answer
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32.
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Scientists used to think electrons moved in orbits around the nucleus. How do
scientists currently describe the movement of electrons?
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33.
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Except during World War II when steel pennies were made, pennies minted before
1984 were made entirely of copper. Pennies made later have a core of zinc covered by a thin layer of
copper. Nickels contain about 25% copper and 75% nickel. Classify each type of coin in terms of
elements, compounds, homogeneous mixtures, and heterogeneous mixtures.
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34.
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Use the periodic table to complete the data in Table 3-1. Properties of Selected
Elements | Symbol | Name
| Atomic number | Average Atomic Mass | | | Fluorine | | | O | | | | | | | 15 | | S | | | 32.066 | Table 3-1 | | | | |
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