Question

What is afbau principle?

Answer 1

It states that, hypothetically, electrons orbiting one or more atoms fill the lowest available energy levels before filling higher levels........

Answer 2

Afbau principal :-)

according to it electrons comes first to that orbital which have lower energy.

to calculate energy level of different orbitals we should use bohr-bury rule.:-

(n+l ) rule : subshell which has lowest value of n + l has lower energy.

n rule: when value of

n +l will be same for two different subshell then we should use n Rule

according to it orbital which have less value of n has less energy