Outer Electron Mobility In Larger Atoms

Larger atoms contain more protons, which results in increased electron movement.

Outer electrons occupy higher energy levels that are farther from the nucleus, resulting in a weaker electrostatic attraction to the nucleus.

Larger atoms are more likely to collide with other atoms, dislodging their electrons and increasing their mobility.

Larger atoms possess a greater number of electrons, which decreases the overall stability of the atom.