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10 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Atom |
The smallest particle that represents an element. |
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Element |
A pure substance that cannot be broken down by an ordinary chemical reaction. |
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Proton |
A positive charge. |
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Electron |
A negative charge that has tiny mass. |
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Neutron |
A neutral charge that is equal to the mass if proton. |
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Compound |
A pure substance that can be broken down into two or more simpler substances by a chemical reaction. |
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Mixture |
When two or more substances that are not chemically united & that exist in no fixed proportion to each other. |
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Homogeneous |
Matter having a definite composition. (Same throughout= salt+water) |
Homosexuals = definite/equal |
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Heterogeneous |
Matter having an indefinite composition. (NOT SAME THROUGHOUT = SALT+PEPPER) |
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Orbital |
A region in space SURROUNDING the nucleus of an atom in which there is a high probability of finding an electron with a given energy. |
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