n+l values:
4d=4+2=6
5p=5+1=6
5f=5+3=8
6p=6+1=7
Sub-shell which has higher (n+l) value, has more energy.
If (n+l) is same for two sub-shells, then the one having more n value has more energy.
5f>6p>5p>4d
4d,5p,5f and 6p orbitals are arranged in the order of decreasing energy. The correct option is:
Held on 30 Apr 2019 · Verified 9 Jul 2026.
5f>6p>5p>4d
6p>5f>5p>4d
6p>5f>4d>5p
5f>6p>4d>5p
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