Question

explane Hund's rule with an example.

Answer 1

Hlo frnd.

Hund's Rule. Hund's rule: every orbital in a subshell is singly occupied with one electron before any one orbital is doubly occupied, and all electrons in singly occupied orbitals have the same spin.
The first rule is especially important in chemistry, where it is often referred to simply as Hund's Rule. The three rulesare: For a given electron configuration, the term with maximum multiplicity has the lowest energy. The multiplicity is equal to , where is the total spin angular momentum for all electrons.

Hope it help u.

Answer 2

Hund's rule of maximum multiplicity is a rule based on observation of atomic spectra, which is used to predict the ground state of an atom or molecule with one or more open electronic shells.

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