Molecular Geometry Set (VSEPR), Five universal VSEPR models allows the student to build linear, planar triangular, tetrahedral, trigonal bipyramidal, octahedral structures, When Student builds the molecules over a white paper and white links it can be easily visualized
Diffraction Apparatus, Used to map light intensity versus position for many-slit geometries, Slits are made by depositing metal film on glass, creating extraordinarily clean slits with fully opaque blocking areas.