1. Tardigrade
  2. Question
  3. Chemistry
  4. The atomic numbers of vanadium (V), chromium (Cr), manganese (Mn) and iron (Fe) are respectively 23,24,25 and 26 Which one of these may be expected to have the highest second ionization enthalpy?

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Q. The atomic numbers of vanadium (V), chromium (Cr), manganese (Mn) and iron (Fe) are respectively 23,24,25 and $26$ Which one of these may be expected to have the highest second ionization enthalpy?

AIEEEAIEEE 2003

Solution:

(by first IP)

This is stable EC hence formation of $Cr ^{2+}$ by second IP requires maximum enthalpy