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Unit Atom Geometry Bond Pegs

  The "Unit" large molecular model set atoms can be configured with any standard VSEPR geometry by means of 3 different "bond pegs" as shown in the image. 

SKU: 69400
Unit Bond Pegs: 72 pieces: (36 tetra; 24 radial;12 polar)

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The leftmost bond peg is the 4/8 which is used to construct the most common geometry, tetrahedral (sp3) or 8 coordinate (metals).

The central, radial peg is typically used to build univalent atoms when 1 is used; 180o (linear) or angled shapes when 2 are used & trigonal when 3 are used & placed 60 degrees apart. They can also be combined with other pegs for any non-standard VSEPR geometry.

The polar peg shown to the right can be used one or two at a time for univalent and 180o linear shapes respectively or with the radial peg to form trigonal bipyramidal or octahedral geometries.


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1 Peg-Univalent, 2 Pegs-Bent Angles, 3 Pegs-Trigonal Planar, 3 Pegs-Trigonal Pyramidal, 4 Pegs-Tetrahedral, 5 Pegs-Trigonal Bipyramidal, 6 Pegs-Octahedral,

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