VSEPR theory models for teaching electron pair repulsion & shape of molecules. From student sets to large lecture hall size; spare parts for every model set we sell.
We have 2 versions of Orbit style VSEPR theory models. The basic set builds 6 molecular geometries. The advanced set dooes 13 shapes and comes with white & black paddles to represent lone elecron pairs.
The Unit model set 69175V is the VSEPR theory version of large model set. Each sphere is 45mm and when combined with the specially designed VSEPR "paddles", any VSEPR shape is visible even from the back row of a lecture hall.
Here is a detailed infographic by Andy Brunning from Compound Chem.