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stuff that everything is made of |
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Everything is made up of smaller stuff called _______.
A substance that cannot be broken down into simpler substances by chemical or physical means. |
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1, 2, or 3 letter abbreviation for an element. |
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the smallest particle of an element that has all the characteristics of that element. |
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a tiny particle that has a positive electrical charge. |
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a particle that is the same size as a proton with no electrical charge.
(neutral charge) |
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a particle much smaller than a proton with a negative electrical charge. |
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the center of the atom made up of neutrons and protons. |
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electrons that orbit the nucleus of the atom. |
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2 x 10^-14
0.00000000000002 m
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2 x 10^-19
0.0000000000000000001 m |
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two or more atoms held together by sharing electrons |
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substance with densely packed particles.
*definite shape and volume |
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temperature at which a solid turns into a liquid |
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substance that takes on the shape of its container, but has no definite volume. |
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the temperature at which a liquid turns into a gas. |
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a substance that takes on the shape and volume of its container. |
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when a solid changes right to a gas |
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