Question

(8) How many electrons could there be in the outermost orbit of an element whose valency is 3?
Ans.​

Answer 1

There can be 3,5,15,29,61 electrons, in an orbit with valency 3.

Answer 2

Answer:

The electrons in the outermost orbit or shell has highest energy. The rule of 2n2 is not valid for the outer most shell of a atom. The outer most shell or orbit of a atom contains maximum of 8 electrons.