Give special emphasis on the following points:
(i) electronic configurations  (ii) oxidation states  (iii) ionisation enthalpies
and  (iv) atomic sizes 4 36
Write down the number of 3d electrons in each of the following ions: Ti
2+, V
2+,
Cr
3+, Mn
2+, Fe
2+, Fe
3+, Co
2+, Ni
2+ and Cu
2+ Indicate how would you expect the five
3d orbitals to be occupied for these hydrated ions (octahedral)