Question

State aufbau principle of electronic configuration

Answer 1

Explanation:

According to the Aufbau principle, electrons first occupy those orbitals whose energy is the lowest.

If two orbitals share equal (n+l) values, the orbital with the lower n value is said to have lower energy associated with it.

Answer 2

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Aufbau principle

Aufbau is a German word which means building up or construction

Statement : In the building up of atoms the electrons enters into the various orbitals in the increasing order of the their energies

The orbital with the lower energy is filled up first followed by the orbitals of higher energy