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Hund's Rule

The principle...

Question

The principles that gives the correct explanation why ground state electronic configuration of $S i$ is
and not
is:

A

Heisenberg's uncertainty principle

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B

Hund's rule

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C

Pauli's exclusion principle

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D

Aufbau Principle

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Solution

The correct option is B Hund's rule
The ground state electronic configuration of $S i$ is:

This is in accordance with Hund's rule which states that electron pairing in any orbital $(s, p, d or f)$ cannot take place until each orbital of the same sub-level contains 1 electron each of like spin.

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Q. The principles that gives the correct explanation why ground state electronic configuration of

S i

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