Question

Element X containd 13 electrons in it's discreet orbits. (1)Write how these electrons would be distributed in the respective shells (2) Find it's valency (3)Why are the electrons distributed in this manner ?​

Answer 1

Answer:

electronic configuration:-2,8,3

valency:-3

Explanation:

the no. of electrons destributed in an atom depend on Bohr's model of electrons destribution

i.e. electrons are distributed in a manner:2(n)²

where n is the orbit number or energy level index,1,2,3,.....