The noble character of platinum and gold is favoured by

The noble character of platinum and gold is favoured by high enthalpies of sublimation, high ionization energies and low enthalpies of solvation. 15. Which one of the following is a d-block element ? (a) Gd (b) Hs (c) Es (d) Cs The elements in which the valence shell electrons enter into the d-orbital are known as the transition elements or d-block elements. Such elements can be determined from the valence shell configuration of elements. In Gadolinium valence shell electrons enter in the 4f orbital. It is an f-block or i