Construct 13 models predicted by Valence Shell Electron Pair Repulsion (VSEPR) theory. Geometries include linear, bent, trigonal planar, tetrahedral, trigonal pyramidal, trigonal bipyramidal, seesaw, T-shaped, square planar, and octahedral. Atom centers measure 3" (carbon, nitrogen, oxygen, sulfur, arsenic, chlorine, and iodine) and 2" (hydrogen and fluorine) in diameter.