Which diagram shows electrons violating the Pauli exclusion principle?

Correct Answer: Option C

Reason:
The Pauli Exclusion Principle states as 'in an atom or molecule, no two electrons can have the same four electronic quantum numbers. Further, an orbital can contain a maximum of only two electrons, the two electrons must have opposing spins.'

Thus, it can be seen that in option C, electrons in last 2 subshell have electrons with same spin, which is a violation of Pauli Exclusion Principle .

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nikitarahangdaleVT nikitarahangdaleVT · Answer 2 · 2022-03-23T05:46:24+01:00

3rd diagram shows electrons violating the Pauli exclusion principle, as in that two electrons with same spin is present.

What is Pauli exclusive principle?

Pauli exclusive principle tells about the orientation of electron inside the orbital as two electrons with different spin will present in an orbital and, it also said that no electron will have same value of four quantum number i.e. n, l, m and s.

In the given diagrams all are following the Pauli exclusive principle except the 3rd one, because in the 3rd diagram on the second and third orbital electrons are present with same spin orientation; which is wrong according to the Pauli exclusive principle.

Hence, option (3) shows the violating of Pauli exclusive principle.

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