Question

what is the valency of pb​

Answer 1

Down the group, the heavier atoms have d-orbitals in them which are poor shielders of the nuclear charge by the nucleus. Therefore, the atoms are attracted by the nuclear charge which can't be lost by small amount of energy. Lead is more stable in valency 2 than 4. Hence, lead shows the valency of 2.

Answer 2

Answer:

Explanation:

Valency of pb is 2