Atom is both an arcade style game, and an educational one. In it, you control a "gravitron", and you must maneuver around a nucleus, grabbing orbiting electrons and then fire them into the "electron holes". Doing this allows you to create elements, starting with the simplest, which is hydrogen. The game allows you to go through the first 54 elements, so you learn that part of the periodic table as you go along.
Title: Atom
Author: ???
Publisher: Radio Shack/Tandy
Released: 1983
Requires: Color Computer 1,2,3, 16K RAM, cartridge, joystick.