Question

13. a .The quantum numbers of five electrons
are given below. Arrange them in order of
increasing energies. If any of these
combination(s) has/have the same energy
lists:
1. n = 4,1 = 2, ml = -2, ms = -1/2
2. n = 3,1 = 2, ml= 1, ms = +1/2
3. n = 4,1 = 1, ml = 0, ms = +1/2
4. n = 3,1 = 2, ml = -2, ms = -1/2
5. n = 3,1 = 1, ml = -1, ms= +1/2
b.Write the all four quantum numbers of 3d
orbitals.​

Answer 1

Energy =n+l

So, 1>2=3=4>5

For 3d orbital

n=3, l= 2, m= +2,+1,0,-1,-2, s= -1/2 or +1/2