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Which of the following sets of quantum numbers is correct for an electron in 3 d orbital? A N = 3 , L = 2 , M = − 3 , S = + 2 1 ​ B N = 3 , L = 3 , M = + 3 , S = − 2 1 ​ C N = 3 , L = 2 , M = − 2 , S = + 2 1 ​ D N = 3 , L = 2 , M = − 3 , S = − 2 1 ​

Which of the following sets of quantum numbers is correct for an electron in 3d orbital?

A

N=3,L=2,M=−3,S=+21​

B

N=3,L=3,M=+3,S=−21​

C

N=3,L=2,M=−2,S=+21​

D

N=3,L=2,M=−3,S=−21​

Grade:7

2 Answers

Geetha Reddy
37 Points
3 years ago
Option c is correct. Set an electron in 3d orbital has quantum numbers N=3, l=2 , M=-2 ,S=+1/2. If n =3 then l=n-1=2 , if l=2 then m=-l to+l =-2to +2 , and s =+1/2 or -1/2
ankit singh
askIITians Faculty 614 Points
3 years ago

The following set of quantum numbers is correct for an electron in 3d orbital.
n=3,l=2,m=−2,s=+21​

For s,p,d and f orbitals, l=0,1,2,3 respectively.


When l=2, m can have values −2,−1,0,+1,+2

The spin quantum number s can have value +21​ or  −21​.

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