Where can most of the freshwater on earth be found?

Over 68% of the freshwater on Earth can be found in glaciers and icecaps.

If your looking for the remaining amount 30% is groundwater and .3% is found on rivers, lakes, etc.

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.