Question

State and illustrate Hund's rule and Pauli exclusion principle giving suitable examples.
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Answer 1

Answer:

Aufbau Principle: lower energy orbitals fill before higher energy orbitals.

Hund's Rule: one electron goes into each until all of them are half full before pairing up.

Pauli Exclusion Principle: no two electrons can be identified by the same set of quantum numbers (i.e. must have

different spins).

Explanation:

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