Question

valency of chlorine that have mass no. 35 and atomic no. 7​

Answer 1

Answer:

3

Explanation:

valency of chlorine is 3 I guess

Answer 2

Answer:

Chlorine has 1 valancy

Explanation:

Because chlorine's electronic configuration is 2,8,7.

Now it has 7 valance electrons ..it need to either loose 5 electros to complete its duplet or gain 1 electron to complete its octate.

It is easy to gain 1 electron as compare to loose 5 electron.

Therefore it has 1 as its valency..

Hope you understood the concept.