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in Structure of Atom by (30.4k points)
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(i) Name the principle which restricts the pairing of electrons in degenerate orbitals. 

(ii) How many electrons can be accomodated in the sub-shell having n = 4 and l = 2?

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(i) Hund’s rule of maximum multiplicity, 

(ii) 10 electrons (4d sub-shell).

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