Question

1) State Pauli s exclusion principal? 2) state Hunds rule of multiplicity?​

Answer 1

Explanation:

Hund's Rule states that if 2 or more degenerate (i.e. same energy) orbitals are available, one electron goes into each until all of them are half full before pairing up . ... The Pauli Exclusion Principle states that no two electrons can be identified by the same set of quantum numbers.

Answer 2

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Pauli's Exclusion Principle states that no two electrons in the same atom can have identical values for all four of their quantum numbers. In other words, (1) no more than two electrons can occupy the same orbital and (2) two electrons in the same orbital must have opposite spins

The rule states that for a given electron configuration, the lowest energy term is the one with the greatest value of spin multiplicity. This implies that if two or more orbitals of equal energy are available, electrons will occupy them singly before filling them in pairs.