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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
The magnetic moment of Mn2+ ion is ____________.
The correct order of increasing oxidizing power in the series
What are transition metals? Give four examples.
Complete the following.
\[\ce{MnO^2-_4 + H^+ ->?}\]
What are interstitial compounds?
Explain briefly how +2 states become more and more stable in the first half of the first-row transition elements with increasing atomic numbers.
Explain the variation in `"E"_ ("M"^(3+)//"M"^(2+))^0` 3d series.
Compare the ionization enthalpies of the first series of the transition elements.
The `"E"_("M"^(2+)//"M")^0` value for copper is positive. Suggest a possible reason for this.
Which metal in the 3d series exhibits +1 oxidation state most frequently and why?
