Determine the name or formula for each polyatomic ion.

Question

Determine the name or formula for each polyatomic ion.

1. formula: CO^{2/3 -} name: ? ion
2. name: nitrite ion       formula:?
3. name: nitrate ion      formula:?
4. formula: CN^-             name:  ?

Answer 1

1. formula: CO₃^2– name: carbonate ion
2. name: nitrite ion       formula: NO₂^–
3. name: nitrate ion      formula: NO₃^–
4. formula: CN^–             name:  cyanide ion