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. This belongs to :

Heisenberg uncertainty principle

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Pauli exclusion principle

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Schrodinger wave equation

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Hund's rule

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Bohr model of the hydrogen atom

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Solution

The correct option is D 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.

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Similar questions

Electron occupies the available orbital singly before pairing in any one orbital occurs, it is

O_{2}

n, l, m_{l}

m_{s}

1 s^{1}

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