Question

What sort of metal is barium?

Answer 1

`"Barium is an alkaline earth metal......"`

Explanation:

Barium is an alkaline earth metal; i.e. it is in Group 2 of the Periodic Table. Barium thus has 2 valence electrons, and it typically forms `BaX_2` salts, as does magnesium. `Ba(NO_3)_2`, `BaCO_3`, `BaSO_4` are all typical barium salts.