How does the size of an atom affect its ability to hold valence electrons?

The bigger the atom the lesser the ability of the atom to hold on to its valence electrons. Atomic radius can be looked at as the distance between the nucleus and the outermost energy level.

Explanation: hope this helps :)

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.