Question

How do transition metals behave in terms of ionization energy?

Answer 1

Transition metals have smaller atomic radii and higher nuclear charge as compared to the alkali metals. Both these factors tend to increase the ionisation energy, as observed.

The ionisation energy increases due to the increase in the nuclear charge with atomic number at the beginning of the series. Gradually, the shielding effect of the added electrons also increases. This shielding effect tends to decrease the attraction due to the nuclear charge. These two opposing factors lead to a rather gradual increase in the ionisation energies in any transition series.

The first ionisation energies of 5d-series of elements are much higher than those of the 3d and 4d series elements.

Answer 2

lonization energies are smallest near the bottom and on the left of the periodic table, and so this is where metals are found. more ever, ionization energies is increased has slowly from one transition element to the relaxed and hardly at all across the inner transition elements.