Question

Explain briefly how +2 oxidation state become more and more stable in the first half of the first row transition elements with increasing atomic number

Answer 1

The oxidation states displayed by the first half of the first row of transition metals are given in the table below. It can be easily observed that except Sc, all others metals display +2 oxidation state. Also, on moving from Sc to Mn, the atomic number increases from 21 to 25.