Question

If an element X whose electronic configuration is 2,8,2 combines with another element Y whose electronic configuration is 2,7,8.
a) What will be the formula of the compound thus formed? b) State how did you arrive at this formula.

Answer 1

Answer:

X=2,8,2⟶ valance e

−

=2

Y=2,8,7⟶ Valance e

−

=1

So, the compound will be XY

2

Example MgCl