JEE MAIN - Chemistry (2003 - No. 46)
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?
Cr
Mn
Fe
V
説明
Due to stable electronic configuration of Cr+1 ion (3d5)