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NEETChemistryd and f Block Elements

Why does the third ionization enthalpy increase for copper, nickel, and zinc?

Options

  1. AThey have a higher atomic number
  2. BThey have a higher number of d electrons
  3. CThey have a higher number of p electrons
  4. DThey have a higher number of s electrons

Correct answer

B. They have a higher number of d electrons

Step-by-step solution

The third ionization enthalpies increase for these elements because they have a higher number of d electrons.

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