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Hund's Rule

State Hund's ...

Question

State Hund's rule of maximum multiplicity.

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Solution

Hund's Rule of Maximum Multiplicity rule states that for a given electron configuration, the term with maximum multiplicity falls lowest in energy. According to this rule electron pairing in p, d and f orbitals cannot occur until each orbital of a given subshell contains one electron each or is singly occupied.

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Can Hund's rule of maximum multiplicity be also called Hund's rule of maximum spin multiplicity ?

Q. If Hunds rule is not obeyed by some elements given below then which atom has maximum magnetic moment?

Q. a) Pauli's Exclusion principle
b) Hund's rule of maximum multiplicity

Q. If Hunds rule is applicable,

p^{3}

configuration is

↿

↿

↿

because in this arrangement:

Q. Assertion :The configuration of

B

-atom cannot be

1 s^{2} 2 s^{2}

. Reason: Hund's rule demands that the configuration should display maximum multiplicity.

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