Pairing of electrons in the orbitals belonging to the same subshe… - Vidyadip

MCQ

Pairing of electrons in the orbitals belonging to the same subshell $(p, d$ or $f)$ does not take place until each orbital belonging to that subshell is singly occupied. This is called :

✓
Hund's rule of maximum multiplicity.
B
Pauli's exclusion principle.
C
Aufbau principle.
D
None of the above.

✓

Answer

Correct option: A.

Hund's rule of maximum multiplicity.

Pairing of electrons in the orbitals belonging to the same subshell $(p, d$ or$f)$ does not take place until each orbital belonging to that subshell has got one electron each, i.e. it is singly occupied. This is called Hund's rule of maximum multiplicity.

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