Which of the following statement is incorrect

Options

A. AcrosS a period from Sc to Cu the densities increase with increasing atomic number
B. The melting point of transition elements rise toa maximum from Se to Cr and then decreases from Fe to Ln.
C. Transition elements have high cnthalpies of atomization
D. On going down a group from 3d to 6d series the stability of higher oxidation state incrcascs with increasing atomic number.

Answer

C

Explanation

(a),(b) and (d) are correct statements.
(c) There is drop in enthalpy of atomization at manganese because of half filled stable electronic configuration leading to less mobilisation of electrons. This results in weaker metallic bonds.