An element X belongs to 3rd period and group 2 of the periodic table State:
(a) number of Valence electrons
(b) Valency
(c) metal or non-metal
(d) name of the element
(a) This Element X has 2 valence electrons.
(b) The valency of X element is 2.
(c) The element X is metal.
(d) Element X is known as Magnesium.