Question

what is valency? (most simplest answer by a class 9 cbse student and not from Internet)​

Answer 1

Answer:

I am a student who is going to 9th in IGCSE.

The valency of an element is a measure of its combining power with other atoms when it forms chemical compounds or chemical molecules.

Hope this helps.

Answer 2

Answer:

The valency of an element is a measure of its combining power with other elements.

Valency is measured in terms of hydrogen atoms or oxygen atoms. It is the number of hydrogen atoms or double the number of oxygen atoms that can combine with it.

Since no other element has combining capacity less than that of hydrogen, its valency is taken to be one(1) and is considered a standard.

I hope this answer will help you friend...

it's according to ICSE syllabus.