NEET2017ChemistryChemical Bonding and Molecular StructureActual

Which of the following electronic configurations has maximum energy?

Correct answer

Step-by-step solution

The order of increasing energy of the sub-atomic orbitals is s < p < d < f . The energy in excited state is more than that in the ground state. In option (a), two electrons are in excited state therefore, it has maximum energy.

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