# What is the formula of lead (II) nitrate?

${\text{Pb(NO"_3")}}_{2}$
We have a ${\text{Pb}}^{2 +}$ cation and a $2 \times {\text{NO}}_{3}^{-}$ gegenion.
Electrical neutrality demands a salt with the formula ${\text{Pb(NO"_3")}}_{2}$.