Question

An element X belongs to 3rd period and group II of the Periodic Table.State:
(a)the number of valence electrons,
(b)the valency,
(c)name of the element.
(d)whether it is a metal or non metal.

Answer 1

valence electrons are 2
valency also 2
magnesium 2,8,2 or 1s2 2s2 2p6 3s2

its metal

Answer 2

Valence electrons 2
Valency 2
Name is Magnesium
IT is a metal