Atomic StructureHard

Question

The electrons identified by quantum numbers n and l,

(i) n = 4, l = 1 (ii) n = 4, l = 0 (iii) n = 3, l = 2 (iv) n = 3, l = 1 can be placed in the order of increasing energy from the lowest to highest, as

Options

A.iv < ii < iii < i
B.ii < iv < i < iii
C.i < iii < ii < iv
D.iii < i < iv < ii

Solution

3p < 4s < 3d < 4p

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