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anzhelika [568]
3 years ago
12

The correct electron configuration of the O2-ion is

Chemistry
1 answer:
Mnenie [13.5K]3 years ago
6 0
I think it’s A sorry if i’m wrong
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An example of polytamic anoin would be a. Ca+2 b. NH4+ c. F d. PO4-3
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PO_4^{-3} and NH^{4+} are polyatomic anions composed of two or more atoms.

<h3>What is a polyatomic anion?</h3>

A polyatomic ion is an ion composed of two or more atoms. Examples: The hydroxide cation (OH^-) and the phosphate cation (PO_4^{3-}) are both polyatomic ions.

PO_4^{-3} and NH^{4+} are the polyatomic anions because both contain more than 1 atom.

Hence,PO_4{-3} and NH^{4+} are polyatomic anions composed of two or more atoms.

Learn more about the polyatomic anion here:

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