Question

What are the examples of non metals having valency 1 ?

Answer 1

They would be Fluorine, Chlorine, Bromine, Iodine and Astatine.

Basically, the halogens.

Hope this helped...

Answer 2

non metals having valency 1 are : halogen family

eg: fluorine , atomic no - 9

its electronic configuration is_

k l

2 7

to find valence electron

8 - no. of electron present in last shell of the element.