Question

Question.3 The position of three elements A, B and C in the Periodic Table is shown below:

Giving reasons, explain the following:
(a) Element A is a non-metal.

Answer 1

moving up in a group the electronegativity of an element increases and electropositive nature decreases , being electronegative element A is a non metal

Answer 2

Explanation:

It is shown that element A belongs to group 17. According to periodic table, elements present in group 17 are all non-metals.

Also, it is known that electronegativity decreases on moving down the group. Therefore, we can say that electronegativity of element A is more than the electronegativity of element C.