Unit

Get the biggest molecular models-Unit atoms are 45mm in diameter. Compare the Unit cyclohexane to the smaller one.

Build big models-giant ice to VSEPR Theory or unique close packed crystal structures.

Prefer lots of smaller atoms? See our Orbit crystal lattice structure models.

And, we have all the spares to custom models, expand existing structures or replace missing bits

Big Molecular Models for Big Classrooms

Unit style molecular models are so versatile they're practically in their own multiverse. Use them for organic/inorganic, VSEPR, Point Groups or lattice structures. Unit atoms are 45mm diameter & make any compound or crystal structure visible at the back of large lecture halls.

Unit atoms were designed for crystal lattices and are configurable for 1-6, 8 & 12 coordinate geometries.

Description More Information Instructions/Safety

More Information

The Unit system is unique in that any atom can take on any geometry. Below are just a few of the ways the atoms & pegs can be combined.

* Images containing white pegs are older style which you may stil possess. 12 coord. pegs are unique.

Bond Pegs & Atom Geometries	Examples of Where Used
	Angled Pegs (left): Use 4 for tetrahedral geometry; Use 8 for 8 coordinate Radial Pegs (Middle): Used for 30, 45, 60, 90, 120 or 180 degrees Polar Pegs (Right): One at each pole for linear atoms; Use with 3 Radial pegs for Tri-Bi
	Top Row: Tetrahedral with 4 angled (4/8 peg) Middle Row: Tri-Bi with 3 radial & 2 polar pegs Bottom Row: Octahedral with 4 radial & 2 polar pegs
	*Top Row: 12 coordinate center with 6 radial & 6 12 coordinate pegs Middle Row: 12 coordinate center with 4 radial & 8 4/8 coordinate pegs Bottom Row:** 8 coordinate center with 8 4/8 coordinate pegs
	*Image:** Examples of non-VSEPR geometries including Germanium and Lanthanum series atoms

Instructions/Safety

Any Unit atom can show univalence using 1 of the 3 different pegs. Combinations of these 3 pegs can produce any geometry from divalent to trigonal up to octahedral.

Watch the video below to see how easy it is to make any molecular geometry from any Unit atom.

Univalent Atoms