Oxides

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Last updated 12:23 PM on 4/27/26
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7 Terms

1
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What does diatomic molecule mean?

It means that it consists of two atoms

2
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What does diatomic anion imply in oxygen chemistry?

The anion must be O2(-) (superoxide) or O2(2-) (peroxide). NOT O(2-) (oxide, monatomic)

3
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What ions are present in KO2?

K(+) and O2(-)

4
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Why is O2 in KO2 NOT -4?

Because O atoms are covalently bonded. Charge is delocalised over the O2 unit. The species is O2(-), not 2 x O(2-)

5
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What is the formula, geometry, charge and bond in oxide?

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6
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Why is O2(-) paramagnetic?

It has one unpaired electron in an antibonding pi* orbital

7
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Why does potassium form KO2 (superoxide)?

Because large K+ stabilizes large, diffuse anions. And it favours O2(-) over O(2-)