This is as per the various rules for filling of electrons in various orbitals i.e. Hund’s rule of maximum multiplicity, Aufbau principle and Pauli exclusion principle. The ground state electronic configuration of Fe is 1s^22s^22p^63s^23p^63d^64s^2.
This is as per the various rules for filling of electrons in various orbitals i.e. Hund’s rule of maximum multiplicity, Aufbau principle and Pauli exclusion principle. The ground state electronic configuration of Fe is 1s^22s^22p^63s^23p^63d^64s^2.
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