Q.
No two electrons in an orbital can have parallel spin. This statement emerges from
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a
Hund's rule
b
Aufbau principle
c
Pauli's exclusion principle
d
(n + l) rule
answer is C.
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Detailed Solution
No two electrons in an orbital can have parallel spin is pauli's principle.If two eletrons of the same orbital have same spin then they will have same n, l, m, s values which is violation of pauli's principle.
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