What are the various rules obeyed while filling an orbit? ( Pauli's , Hund's , Afabau's etc)

Question

What are the various rules obeyed while filling an orbit?  ( Pauli's ,  Hund's , Afabau's etc)

anirudha vats · Accepted Answer

Hey,

The rules for filling of an orbit basically includes,

-Aufbau Principle which states that the orbit with low principal quantum number will be filled first.

-Hund's rule states that electrons in any orbit are filled singly first with the same spin and then are paired.

-Pauli Exclusion Principal states that no two electron can have all the same quantum number configuration.

These three law basically forms the rules for filling of electrons in any orbit in an atom.

Hope that helps.

Thank you.

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