Question

what is maximum number of electrons present in third main energy level​

Answer 1

Answer:

maximum number of electrons present in third energy level is 18.

According to Bohr's formula stating that number of electrons in every shell is given by 2n^2, electrons in 3rd shell is 2 × (3)^2 = 2 × 9 = 18

Answer 2

nth shell has n² orbital and each orbital has maximum of 2 electrons. 2n² number of electrons are present in nth energy level. For third shell n = 3.

2 × 3²= 18

Ans : 18