Question

GIVE SCIENCETIFIC REASON:
The valency of chlorine (CL) is one​

Answer 1

Explanation:

The atomic number of chlorine is 17. The valence electrons in chlorine would be 7, and it needs to gain 1 electron from the outermost orbit to attain an octet. Therefore, the valency of chlorine is 1.

Answer 2

Answer:

3rd shell of an element should contain max 18 electrons but there is one more rule that there should be max 8 electrons in the valence shell of an element….

As chlorine has 17 as its atomic number,its electronic configuration should be 2,8,7

Now as it has 7 as valence electrons….. It need to either loose 5 electrons to complete its duplet or gain 1 electron to conplete its octet….

It is easy to gain 1 electron as compated to loosing 5 electrons…..

Therefore, it has 1 as its valency…

Explanation:

The atomic number of chlorine is 17 and the electronic configuration is 2, 8, 7. Therefore, the valency of chlorine is 1. hope you understood then pls like and follow and mark me brainliest