Question

Which chemical formula represents a polyatomic ion?

Answer 1

Answer:CIO^-

Explanation: just took the quiz, and I got it right

Answer 2

Polyatomic ions describes ions which are posses more than one atom. Hence, the formula which represents a polyatomic atomic ion is $SO_{4}^{2-}$

• Sulphates contain both Sulphur and Oxygen atoms, hence, they contain two atoms, thus they are polyatomic.

• Sulphide are represented as $S^{2-}$ ; containing only Sulphur atom, hence, they are mono atomic.

• Chlorides are represented as $Cl^{2-}$ ; containing only chlorine atoms, hence, they are mono atomic.

• Nitrides are represented as $N^{3-}$ ; containing only Nitrogen atom, hence, they are also mono atomic.

Therefore, sulphates are polyatomic as they contain more than one atom.

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