Question

The element(s) with valency 1 is / are
a) Hydrogen
b) Flourine
[
6.
c) Sodium
d) Magnesium​

Answer 1

Answer:

a,b,c are answer

Explanation:

halogens and alkali metals have valency one because they require 1 electron to gain or lose to attain Nobel gas configuration.

Answer 2

Answer:

element with valency 1 is (sodium)