Question

why ionization energy of alkali metals decreased as we go down the group​

Answer 1

Answer:

The ionization enthalpies of the alkali metals decrease down the group from Li to Cs because the increase in size overweighs the increase in nuclear charge. As a result, the attraction between valence shell electrons and nucleus decreases down the group and therefore, the ionisation enthalpies decrease from Li to Cs.

Answer 2

Answer:

conversely,as one progresses down a group in periodic table, the ionization energy will likely decrease since the valence electrons are further away from the nucleus and experience greater shielding effect.They experience a weaker attraction to positive charge of the nucleus

Explanation:

it can help u keep it up❤️