What is an example of a polyatomic ion?

1 Answer
Nov 1, 2015

Nitrate, carbonate, phosphate, sulfate, nitrite, thiosulfate, perchlorate?

Explanation:

NO_3^-, CO_3^(2-), PO_4^(3-), SO_4^(2-), NO_2^-, S_2O_3^(2-), ClO_4^-. Do I win 5 pounds? In all of these examples the negative charge(s) formally lies on the oxygen atom - i.e. it lies on the most electronegative atom.