Oxidation Numbers Rules (Redox Reactions)

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Flashcards covering the rules for assigning oxidation numbers, essential for understanding redox reactions.

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8 Terms

1
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Oxidation number of a pure element

Zero

2
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Oxidation number of a monatomic ion

Equal to its charge

3
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Oxidation number of Fluorine (F)

Always -1 when combined with other elements

4
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Oxidation number of Oxygen (O)

-2 in most cases

5
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Oxidation number of Halogens

-1, except when combined with Fluorine (F) or Oxygen (O)

6
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Oxidation number of Hydrogen (H)

+1 in most cases

7
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Sum of oxidation numbers in a neutral compound

Zero

8
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Sum of oxidation numbers in a polyatomic ion

Equal to the ion's charge