A
Ananthu
22 Mar 18 8:33 PM

WHAT IS AUFBAU PRINCIPLE

Replies to this post

N
Nandan

The aufbau principle states that in the ground state of an atom or ion, electrons fill atomic orbitals of the lowest available energy levels before occupying higher levels. For example, the 1s shell is filled before the 2s subshell is occupied. ... Aufbau is a German noun that means construction or "building-up".

2
N
Nandan

Order of electron filling

2