Question

Define the valency of the following elements O,C,F,Ne,N,H,etc.​

Answer 1

Answer:

here is the solution for the question

Answer 2

O =2

since the electronic configuration is 1s2 2s2 2p4

C=4

1s1 2s2 2p2

F=1

ec. He 2s2 2p5

Ne=0

ec.1s2 2s2 2p6

H=1

1s1