Answer: Simple Molecule
Explanation: Ambigous question. What is the scientific definition of "simple molecule?" More by process of elimination than actual difinition, this is a simple molecule. It takes a minum of two atoms to make a molecule (by definition). A crystal is a collection of molecules, a polymer is a chain of molecules, and a complex molecule is, er . ., complex. The only reasonable, and best, answer is "simple molecule."
