Elements with high ionization energies would-------

stancovick49

4 years ago

Elements with high ionization energies would-------

A. lose electrons easily
B. have large atomic radii
C. have high effective nuclear charges
D. have low atomic numbers

In general, ionization energy increases across a period and decreases down a group. Across a period, effective nuclear charge increases as electron shielding remains constant.
As the nuclear charge increases, its attraction for the outermost electron increases and more energy is required to remove an electron. This means that the ionisation energy increases.