Question

ionisation energy in group and period​

Answer 1

Answer:

Moving left to right within a period or upward within a group, the first ionization energy generally increases. ... Conversely, as one progresses down a group on the periodic table, the ionization energy will likely decrease since the valence electrons are farther away from the nucleus and experience greater shielding.

Answer 2

Answer:

in group

down the group ionization potential decreases

in period

left to right ionisation potential increases