Question

Which chemical formula represents a polyatomic ion?(1 point)
Responses

Na+
Na +

ClO–
ClO –

Cl–
Cl –

NaCl

Answer 1

The chemical formula that represents a polyatomic ion is **ClO⁻**. Polyatomic ions are ions that consist of two or more atoms bonded together, and in this case, ClO⁻ (chlorite ion) is an example of a polyatomic ion. The others listed are either monatomic ions (like Na⁺ and Cl⁻) or a neutral compound (like NaCl).