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NEET 2023
Exam
NEET
Year
2023
Subject
Chemistry
Chapter
Structure of Atom

NEET 2023 · Chemistry · Structure of Atom

Incorrect set of quantum numbers from the following is

Incorrect set of quantum numbers from the following is

Options

  1. An=4,l=2, ml=−2,−1,0,+1,+2, ms=−1/2\mathrm{n}=4, \mathrm{l}=2, \mathrm{~m}_{\mathrm{l}}=-2,-1,0,+1,+2, \mathrm{~m}_{\mathrm{s}}=-1 / 2
  2. Bn=5,l=3, ml=−3,−2,−1,0,+1,+2,+3, ms=+1/2\mathrm{n}=5, \mathrm{l}=3, \mathrm{~m}_{\mathrm{l}}=-3,-2,-1,0,+1,+2,+3, \mathrm{~m}_{\mathrm{s}}=+1 / 2
  3. Cn=4,l=3, ml=−3,−2,−1,0,+1,+2,+3, ms=−1/2\mathrm{n}=4, \mathrm{l}=3, \mathrm{~m}_{\mathrm{l}}=-3,-2,-1,0,+1,+2,+3, \mathrm{~m}_{\mathrm{s}}=-1 / 2
  4. Dn=5,l=2, ml=−2,−1,+1,+2, ms=+1/2\mathrm{n}=5, \mathrm{l}=2, \mathrm{~m}_{\mathrm{l}}=-2,-1,+1,+2, \mathrm{~m}_{\mathrm{s}}=+1 / 2

Correct answer

D. n=5,l=2, ml=−2,−1,+1,+2, ms=+1/2\mathrm{n}=5, \mathrm{l}=2, \mathrm{~m}_{\mathrm{l}}=-2,-1,+1,+2, \mathrm{~m}_{\mathrm{s}}=+1 / 2

Step-by-step solution

For any value of I,m1\mathrm{I}, m_1 value will be −l-\mathrm{l} to +I+\mathrm{I} So for n=5\mathrm{n}=5 and I=2\mathrm{I}=2 : ml=−2,−1,0,+1,+2\mathrm{m}_{\mathrm{l}}=-2,-1,0,+1,+2 and ms=+12\mathrm{m}_{\mathrm{s}}=+\frac{1}{2} or −12-\frac{1}{2} Hence, the set n=5,l=2,ml=−2,−1,+1,+2,ms=+12n=5, l=2, m_l=-2,-1,+1,+2, m_s=+\frac{1}{2} is incorrect
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