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n+l , Auf-Bau, Pauli and Hund's Rule
Question#1
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Question#2
In a given atom no two electrons can have the same values for all the four quantum numbers. This is called [BHU 1979; A MU 1983; EAMCET 1980, 83; MA DT Bihar 1980; CPMT 1986, 90, 92; NCERT 1978, 84; RPMT 1997; CBSE PMT 1991; MP PET 1986, 99]
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Question#3
Electron enters the sub-shell for which (n + l) value is minimum. This is enunciated as [RPMT 2000]
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Question#4
When 6d orbital is filled, the entering electron goes into? MDCAT2023
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Solution:
hint n+l rule
7s(7+0) =7
6d (6+2)=8
7p(7+1)=8
7d(7+2)=9
7f(7+3)=10
Question#5
Electron occupies the available orbital singly before pairing in any one orbital occurs, it is [CBSE PMT 1991]
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