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Byju's Answer
Standard XII
Chemistry
Quantum Numbers
State True or...
Question
State True or False.
4s orbital has less than energy than 3d orbital
A
True
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B
False
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Solution
The correct option is
A
True
The energy in an orbital is given by n+l rule,
4s 4+0
=
4
3d 3+2
=
5
The n+l value for a 4s orbital is lesser than the 3d orbital and hence the 4s has lesser energy.
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