Question

An element A of at. No. 12 combines with an element B of at. No. 17. The compound formed is

Answer 1

Answer:

Magnesium chloride

Mg2 + Cl- →mgcl2

Answer 2

Answer:

Explanation:

Element having atomic number 12 is Mg.

Element having atomic number 17 is Cl.

The well known reaction of these two elements is:

$Mg$ + $Cl_{2}$   →  $MgCl_{2}$.

Hope you understood this question well !!