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Filling of electrons in the orbitals on a ground state atom is governed by three rules. (a) Which are the three rules? (b) State any one of them. |
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Answer» (a) (1) Aufbau principle (2) Pauli’s exclusion principle (3) Hund’s rule of maximum multiplicity (b) Hund’s rule of maximum multiplicity – electron pairing in orbitals of same energy will not take place until each degenerate orbital of a given subshell is singly occupied. |
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