Question

An element x (atomic number 17) reacts with an element y (atomic number 20) to form a divalent halide. 2 (a) what is the position of element x and y in the periodic table? (b) what will be the nature of oxide of element y? Identify the nature of bonding in the compound formed.

Answer 1

a ) Position of X = 17 group , 3rd period

Position of Y = 2nd group ,4 th period

b) metal oxide

c) ionic bonding

Answer 2

Here is ur answer↓

The element which has atomic number 17 and which is a halogen is Çhlorïñè.So, x is chlorine

The element which has atomic number 20 is Calcium. So ,y is Calcium

Given that:-

x+y→divalent halide

Divalent halide→Ca+Cl2→CaCl2

a)position of x in periodic table:- 7th group 3 rd period

Position of y in periodic table:-

2nd group 4 the period

b) y is calcium. Since it is a metal and metal oxides are basic in nature, y will form basic oxide.

The bond between x and y is ionic bond since a bond between a metal (calcium) and a non metal(chlorine) is ionic and transfer of electrons take from metal to the non metal.

Thanks.......