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8 Cards in this Set
- Front
- Back
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Flourine |
ALWAYS -1 |
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Group 1A metals |
+1 |
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Group 2 A metals |
+2 |
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Hydrogen |
+1 |
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Rule 1 |
The oxidation number of any element in its elemental form is 0 |
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Rule 2 |
The oxidation number in any chemical species must sum to the overall charge on the species. that is, oxidation numbers must some to zero for any molecule and must sum to the charge on any polyatomic ion. the oxidation number of monatomic ion is equal to charge on the ion. |
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Oxygen Exception |
-2 Any combination higher in the list that necessitates it having a different oxidation number. |
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Group 7A (except flourine) Exception |
-1 Any combination with something higher on the list that necessitates it's having a different oxidation number |
