Question

2. An element belongs to the 3rd period and Group IIIA (13)
of the periodic table. State:
(a) the number of valence electrons,
(b) the valency,
(c) if it is a metal or non-metal ?
(d) the name of the element.
following with reference to the elements​

Answer 1

Answer:

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

(b) Since the number of valence electrons and the valency of group 2 elements is 2, the valency of element X is 2. (c) Group 2 is on the left side of the periodic table which consists of metals. Therefore X is a metal. (d) The name of the element is Magnesium (Mg), since X belongs to group 2 and the 3rd period.