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4 Cards in this Set
- Front
- Back
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protron |
A subatomic particle that has a positive charge and that is found in the nucles of an atom . |
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Atom mass unit |
A unit of mass that describles the mass of an atom or moleclue |
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Neutron |
A subatomic particle that has no charge and that is found in the nuclues of an atom |
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atomic number |
the number of portrons in the nuclues of an atom; the atomic number is the same for all atoms of an element. |
