1
$\begingroup$

The second ionisation energy is expected to be highest for element with atomic number:

  1. 22
  2. 24
  3. 25
  4. 30

I had expected the answer to be option 2 because the second electron has to be removed from the stable half filled $\ce{3d}$ configuration. But the answer is option 4.

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.