# What is the formula for barium bromide?

##### 1 Answer
Apr 13, 2017

$B a B {r}_{2}$...............

#### Explanation:

Barium is an $\text{alkaline-earth metal}$............i.e. $\text{Group 2}$.

And thus barium commonly forms a $B {a}^{2 +}$ ion, just as the halogen bromine, commonly forms a $B {r}^{-}$. And hence the salt formed is $B a B {r}_{2}$.