Question

Explain electronic configuration of He and N according to Pauli

and Hund’s principle.

hope so that you will answer me from your best ​



sorry for the mistake but it is a chemistry question

Answer 1

Answer:

its your answer

Explanation:

Pauli's Principle:

This principle states that two electrons cannot have all the same Quantum numbers.

Hund's Principle:

This principle states that electrons will first occupy the orbitals singly and then undergo pairing.

Following these principles:

Helium has atomic number 2. Hence these two electrons occupy the 1s orbital in pair.

Nitrogen has atomic number 7.

Hence , first two electrons occupy the 1s orbital, second to electron occupy the 2s orbital. And last three electron occupy the 2p orbital without pairing.

Hope It Helps.

Answer 2

Answer:The Pauli exclusion principle explains why some configurations of electrons are allowed while others are not. Since electrons cannot have the same set of quantum numbers, a maximum of two can be in the n = 1 level, and a third electron must reside in the higher-energy n = 2 level.