Atomic Numbers for Polyatomic Ions

[rmiller70015]

In the Debye-Huckle Equation there are a few z terms referring to atomic number. But what if the ion is polyatomic? Is it just the sum of the atomic numbers or is there something else that needs to be used?
Never mind, it's the charge number not the atomic number.

 

[jim mcnamara]

Closed - this is a 'nevermind' question.