# What is the formula for tin (IV) nitride?

$\text{Stannic nitride, } S {n}_{3} {N}_{4}$
Stannic nitride is composed of stannic ion, $S {n}^{4 +}$, and nitride ion, ${N}^{3 -}$. Cross multiplication of ions ($3 \times S {n}^{4 +} + 4 \times {N}^{- 3}$) gives a neutral salt.