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NEETChemistryd and f Block Elements

Why is the ionization enthalpy of Zn2+ lower compared to Cr2+ and Cu2+?

Options

  1. AZn2+ has fewer d electrons
  2. BZn2+ has more s electrons
  3. CZn2+ has a lower atomic number
  4. DZn2+ has more p electrons

Correct answer

A. Zn2+ has fewer d electrons

Step-by-step solution

Zn2+ has a d10 configuration, which means it has fewer d electrons compared to Cr2+ and Cu2+, leading to a lower ionization enthalpy.

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