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प्रश्न
Why first ionization enthalpy of chromium is lower than that of zinc?
उत्तर
The electron configuration of chromium \[\ce{(Cr)}\] is \[\ce{[Ar]3d^5 4s^1}\] . Because half-filled or fully-filled orbitals have greater stability, removing an electron from the 4s orbital is simpler than removing one from the half-filled 3d orbital. As a result, chromium has lower initial ionisation energy than zinc.
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संबंधित प्रश्न
Which one of the following ions has the same number of unpaired electrons as present in V3+?
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\[\ce{MnO^2-_4 + H^+ ->?}\]
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