Question

how to write valency Number please explain more

Answer 1

Hiiiii..

here is ur answer...

valancy: the combining capacity of a atom is known as valancy of that element........

to write valancy to a particular element.there are some rules .... mainly we can write valancy by outer shell electrons or valance electrons...

eg. carbon= 2,4

the outer shell electrons are 4.so the valancy of carbon is 4.. this rule is not applicable to all other elements...

by subshells s, p, d, f we can write valancy of elements by electronic configuration of orbitals...

beryllium=4= 1s² 2s².. here valancy is 2..

hope it helps you mark it as brainliest.....
====
==========

sravan kumar....
Rock star sanu........

Answer 2

it's very easy. please see the photo . it will clear your doubt.