Sticky Elemental Snow 1e
Introduction: In this version, in addition to sticking to their position in the table when they drift close by, the cells are colored according to their atomic number. I have a lot of fun with chemistry, now that I don't have to take any exams on it ;-) ~Kristin.

Author: Kristin Henry
Author's comments:
In the last two version of this, more than one copy of the cell could land
in an element's position in the table. After running for a while, the overlapping
cells would darken to the point of almost solid. In this version, only one
copy of the cell sticks to an element's position in the table.