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20-09-2021
Chemistry

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is a polyatomic anion an atom or molecule

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20-09-2021

Answer:

Atom.

Explanation:

Polyatomic

—ions are ions which consist of more than one atom. For example, nitrate ion, NO3-, contains one nitrogen atom and three oxygen atoms. The atoms in a polyatomic ion are usually covalently bonded to one another, and therefore stay together as a single, charged unit.

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