Question

What do you mean by the statement, " the d orbitals of the transition element project to the periphery of an atom more than the other orbital. Hence, they are more influenced by the surrounding as well as affecting the atoms or molecules surrounding them."?

Answer 1

d orbital has a higher energy even though they are the penultimate shell. higher energy means they are less stable and more reactive. thus it acts as valence eletron. the influence of nucleus is thus low in the electrons of d orbital. hence they are more influenced by the surrounding as well as affecting the atoms or molecules surrounding them.