Please help

Ions and Their Charges

Name        Charge   Symbol or Formula
Lithium        _?_                Li+
____?___    1+                 Na+
Calcium       2+              ___?__
Chloride      1?               ___?__
___?____    1?               NO3-
Carbonate   2?              ___?___

Which of these ions are polyatomic? Explain.

Respuesta :

carbonate

as it it is made up of more than 1 type of ion.

'poly' means many