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13 Cards in this Set
- Front
- Back
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Atoms |
The building blocks of matter |
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Nucleus |
Center of the atom |
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Protons |
Positively charged particles |
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Neutrons |
Particles that have no charge |
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Electrons |
Negatively charged particles |
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Element |
Pure substance that cannot be broken down into other substances |
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Isotopes |
Atoms of the same element that have different numbers of neutrons
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Compounds |
Combination of two or more substances |
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Covalent Bond |
Chemical bond that is formed when electrons are shared
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Molecule |
Compound where substances are held together with covalent bonds |
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Ion |
An atom that has lost or gained an electron |
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Ionic Bond |
Electrical attraction between two oppositely charged atoms or groups of atoms |
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van der Waals forces |
Attractive forces between positve and negative regions of molecules |
