Higher values of ionisation energies of the 5d-transition elements are consistent with the:

The ionisation energies of tranition elements are:

How will you account for the following : (i) All scandium salt are white. (ii) The first ionisation enthalpy of the 5d transition elements are higher than those of 3d and 4d transition elements in respective group.

The first ionisation energies of the elements of the transition series

The valence shell of transition element consists of

The valence shell of transition element consists of

The valence shell of transition element consists of