Which of the following elements belongs to first inner transition series?

Which of the following elements belongs to first inner transition series?
  1. Bk
  2. Pu
  3. Pr
  4. Fm

Solution

Pr belongs to first inner transition series, i.e. Lanthanoids series elements.

Asked in: MHT CET 2020 (16 Oct Shift 2)

Practice more Transition and Inner Transition Elements questions on Aicharya