Posted on

Arrangement of Electrons and the Nucleus

Electrons occupy shells (orbits) surrounding the nucleus. The shells are lettered K, L, M, N, O… and numbered 1,2, 3, etc., corresponding to energy levels. There is a limit to the number of electrons that can be found in a shell.
The actual number is obtained by a formula img 3, where n is the energy level.

img 4

READ MORE