Question

There is hardly any increase in atomic size with increasing atomic numbers in a series of transition metals. Give reason. [AI2012]

Answer 1

there is hardly any increase in the atomic size with increasing atomic number because the filling of f orbitals starts before the d oritals and we knw that the f orbitals have poor shielding effect,so with growing nuclear charge the electrons are attracted more towards the nucleus therefore there is no significant effect on the side.