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11 Cards in this Set
- Front
- Back
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In free elements, each atom has an oxidation number of ____
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zero
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For ions composed of only one atom, the oxidation number is _____
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equal to the charge on the ion
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The oxidation number of oxygen in most compounds is _____
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-2
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The oxidation number of oxygen in hydrogen peroxide and the peroxide ion is
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-1
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the oxidation number of hydrogen is ____ except when its bonded to metals in binary compounds
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+1
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the oxidation number of hydrogen when it's bonded to metals in binary compounds is
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-1
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fluorine has an oxidation number of ___ in all its compounds
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-1
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halogens have _____ oxidation numbers when they occur as halide ions in their compounds
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negative
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halogens (besides fluorine) have _____ oxidation numbers when combined with oxygen
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positive
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the oxidation number of a neutral molecule or a polyatomic ion is equal to
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the charge on the molecule or ion
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Do oxidation number have to be integers?
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No
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