MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryAtomic StructureIntro
[CBSE AIPMT 2009] Which of the following is NOT a permissible arrangement of electrons in an atom?
0.n=3, l=2, m=−3, s=−1/2
1.n=5, l=3, m=0, s=+1/2
2.n=4, l=0, m=0, s=−1/2
3.n=3, l=2, m=−2, s=−1/2
Explanation
For l=2, m can only be −2, −1, 0, +1, +2. So m=−3 is NOT permissible when l=2.
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