Term
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Definition
| pure substance that consists entirely of one type of atom. |
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Definition
| are positively charged particles. |
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Definition
| is a negatively charged particle |
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Term
| how to find atomic number |
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Definition
| the number of protons in an atom of an element is the atomic #. |
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Term
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Definition
| are atoms of the same element that differ in number of neutrons. |
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Definition
| is a substance formend by the chemical combination of two or more elements in definite proporations. |
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Term
| what are van der waals forces |
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Definition
| when molecules are close together,a slight attraction can develop between the oppositely charged regions of nearby molecules. |
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