Science - 1
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Created by:
charennis Plus on January 20, 2011
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9 terms
Terms | Definitions |
|---|---|
 polyatomic ions | a positively or negatively charged, covalently bonded group of atoms (nonmetals) |
| an ionic compound | act as a single ion in ______ |
| valence electrons, gain, lose | depending in the number of ______, an atom will either ____ or ____ electrons |
| 1, 2, 3, 4, lose | if an atom has __, __, __, or __ electrons it will ____ electrons (metals) |
| 4, 5, 6, 7, gain | if an atom has __, __, __, or __ electrons it will ____ electrons (nonmetals) |
| oxidation number | indicates how many electrons an atom has gained, lost or shared |
| loses, positive | if an atom _____ an electron, its oxidation number is ________ |
| gains, negative | if an atom _____ an electron, its oxidation number is ________ |
| chemical bonds | bonds formed between atoms when valence electrons are exchanged or shared-----exchanged=ionic, shared=covalent |
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