Which of the following metal is expected to have the highest third ionization enthalpy?

CHEMISTRY · Single correct · A Level · Chemistry · Transition metals and their chemistry · Transition metals and their chemistry

Problem

Which of the following metal is expected to have the highest third ionization enthalpy? (1) Cr (Z=24) (2) V (Z=23) (3) Mn (Z=25) (4) Fe(Z=26)