Within a group, as the atomic numbers of the elements increase, the
A) elements become less metallic.
B) atomic radii decrease.
C) ionization energies decrease.
D) atomic masses decrease.

Question

Quizplus · Accepted Answer

As you move down a group in the periodic table, the atomic number increases, leading to an increase in atomic size and a decrease in ionization energy due to the increased distance of the outer electrons from the nucleus and increased electron shielding.

Within a Group, as the Atomic Numbers of the Elements