Question

write down the two factors that govern the distribution of electrons

Answer 1

i know one. Energy levels. more energy electron will be in out shell. and less energy in inner shell.

Answer 2

Answer:

Rule 1: Maximum number of electrons in each shell of the atom.

The maximum number of electrons which can be present in any shell of an atom is given by or represented by a - formula 2n².

where n is equal to - the number of shell as counted from the nucleus.

shell designation         shell no.         formula 2n²        max. no. of electrons

     K- shell                        1                  2*(1)²                                2

     L- shell                        2                  2*(2)²                              8

     M- shell                       3                  2*(3)²                              18

     N-shell                        4                   2*(4)²                             32

Rule 2: Electrons in the outer most shell

The outermost shell cannot have more than 8 electrons.

[ The penultimate shell [ last but one] cannot have more than 18 electrons.]

A new shell is formed as soon as the- outermost shell attains 8 electrons.