Question

The family of non metal having valency one

Answer 1

heyy user ur answer.........

halogen family have valency is equal to =1.....hope this help u....@kundan

Answer 2

Explanation:

The family of non-metals with valency one is the halogen family. The members of this family as as follows.

Fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and Astatine (At).

The electronic configuration of each of these elements are as follows.

Fluorine (F): $1s^{2}2s^{2}2p^{5}$

Chlorine (Cl): $1s^{2}2s^{2}2p^{6}3s^{2}3p^{5}$

Bromine (Br): $1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{10}4s^{2}4p^{5}$

Iodine (I): $[Kr]4d^{10}5s^{2}5p^{5}$

Astatine (At): $[Xe]4f^{14}5d^{10}6s^{2}6p^{5}$

Thus, we can conclude that each of the above elements have valency one. All the halogen family atoms are non-metal.