Question

if k' and 'L' shells of an atom are completely filled, then what would be the total
number of electrons in an atom and its valency?​

Answer 1

Answer:

The maximum number of electrons that can be occupied in K and L-shells of an atom are 2 and 8 respectively. Therefore, if K and L-shells of an atom are full, then the total number of electrons in the atom would be (2 + 8) = 10 electron