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11 Cards in this Set
- Front
- Back
ATOM |
base unit of matter |
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Nucleus |
strong forces bind protons and neutrons to gether form the nucleus |
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electron |
its a negative charge partice (-) with 1/1840 the mass of a proton |
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ELEMENT |
is a pure substance that consists entirely of one type of atom |
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Isotopes |
Atoms of the same element that differ in the number of neutrons they contain are known as isotopes |
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Compound |
is a substance formed by the chemical combination of two or more elements in definite proportions |
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Iconic Bond I |
formed when one or more electrons are transferred from one atom to another |
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ion |
these postively and negatively charged atoms |
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covalent bond |
forms when electrons are shared between atoms |
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molecule |
is the smallest unit of most compounds |
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vanderwaals forces |
a slight attraction can develop between the oppositely charged regions of nearby molecules |