Question

Explain atomic radii and ionic radii trend ,of first now element of transition series

Answer 1

Answer:

Explanation : When we go in any transition series from left, to right. the nuclear charge increases gradually by one unit at each elements. ... At the beginning of the series, due to smaller number of electrons in the d-orbitals, the effect of increased nuclear charge predominates and the atomic radii decrease

Answer 2

The atomic and ionic radii of the transition elements decrease from group 3 to group 6 due to the poor shielding offered by the small number of d-electrons. Those placed between groups 7 and 10 have somewhat similar atomic radii and those placed in groups 11 and 12 have larger radii