Question

I How will you find the
Valency of chlorine, and
Aluminium?
​

Answer 1

Answer:

Explanation:

Aluminium chloride doesn't have valency. It is a compound and the valencies of constituent atoms are satisfied. Aluminium had a valency of + 3 and each chlorine atom had a valency of -1.

Answer 2

Answer:

Atomic number of Cl is 17 hence the e- are scattered in form of

2 , 8 , 7

Now as Cl is A nonmetal we will subract the No of e- in the last shell with the max no. of e- in that shell

i.e. 7-8= 1

Therefore Cl has valence of 1

In case if Al its atomic number is 13 and e- scatted as

2 , 8 , 3

As its a metal hence we dicrecty conclude the valency as the no. of e- present in last shell

i.e. 3

Therefore the valence is 3