Question #15936

1 Answer
Dec 14, 2017

XY_2

Explanation:

e.g. MgCl_2, BaBr_2

Atom X requires two electrons to fill its valence shell
Atom Y requires one electron to fill its valence shell

Therefore, atom X forms two bonds with two Y atoms.

See an example below, with the dot and cross diagram to show the ionic bonding:

http://slideplayer.com/slide/8070798/http://slideplayer.com/slide/8070798/