Oxidation number rules

Oxidation number rules - to nonmetals –1 when bonded to...

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Assigning oxidation numbers: Elements: oxidation number is zero. Monatomic ions: oxidation number equals the ion’s charge. Oxygen: usually –2. In H 2 O 2 and O 2 2- it is –1. In OF 2 it is +2. In O 2 - it is -½ Hydrogen is +1 when it is bonded
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Unformatted text preview: to nonmetals, –1 when bonded to metals. Oxidation numbers add up to the charge on the molecule/ion. IA metals: +1, IIA metals: +2 F: –1. Dihalogens: higher up in the periodic table = -1...
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