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If the nitrogen atom had electronic conf...

If the nitrogen atom had electronic configuration '1 s^7', it would have energy lower than that of the normal ground state configuration '1 s^2 2 s^2 sp^3', because the elec- trons would be closer to the nucleus. Yet, '1 s^7' is not observed because it violates:

A

Heisenberg uncertainty principle

B

Hund's rule

C

Pauli exclusion principle

D

Bohr postulate of stationary orbits

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The correct Answer is:
C
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