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1
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positively charged particles
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2
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how much space a substance takes up
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3
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different atoms combine to form this
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4
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change that affects only appearance
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5
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the state of matter with a definite volume and shape
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6
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the state of matter with no specific volume or shape
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7
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the center of the atom
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9
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negatively charged particles
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10
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point at which a liquid changes to a gas
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14
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the number that shows how closely the molecules in a substance are spaced, in relation to water
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16
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the amount of matter in a substance
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17
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state of matter with no specific shape, but has a defintie volume
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19
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particle with no charge
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20
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pure matter made of one type of atom
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21
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the smallest particle of matter
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