Question

State the atomic no.,mass no. ,no. of electron ,no. of proton ,no.of neutrons and valency of The given element

Answer 1

Answer:

1.Atomic no.11

Mass no.23

No. of electron = 11

No.of proton = 11

No. of neutron = 12

Valency = +1

2..Atomic no.18

Mass no.40

No. of electron = 18

No.of proton = 18

No. of neutron = 22

Valency = 0

Explanation: