Unit Atom Geometries

All of the 45mm atom spheres have multiple holes that can be configured to demonstrate any standard (VSEPR) geometry.

SKU: 69175
Unit Organic Chem. Lecture Hall Molecular Model Set

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The black sphere has been constructed to show a tetrahedral (sp3) shape by using 4 of the 4/8 coordinate bond pegs. The blue sphere has been configured with 2 polar and 3 radial bond pegs to show a trigonal bipyramidal geometry. The silver sphere below has been constructed using 4 radial pegs and 2 polar pegs for an octahedral geometry.

If only one polar peg is used, the sphere can representative a univalent atom. If 2 polar pegs are used, the sphere can represent a 180o linear arrangement (e.g. hydrogen bond). If only three radial pegs are used, then the sphere will represent a trigonal configuration.

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69388CAtom, Unit, 25mm, white (hydrogen)30
69390CAtom, Unit, 45mm, blue (nitrogen)4
69391CAtom, Unit, 45mm, red (oxygen)6
69392CAtom, Unit, 45mm, black (carbon)20
69393CAtom, Unit, 45mm, green (halogen)6
69394CAtom, Unit, 45mm, silver (metal)2
69395CAtom, Unit, 45mm, yellow (sulfur)2
69400Unit Bond Pegs: 72 pieces: (36 tetra; 24 radial;12 polar)2
69150-60Unit Blue Plastic Bond, 60mm36
69150-80Unit Blue Plastic Bond, 80mm40
69150-120Unit Blue Plastic Bond, 120mm4
69084CUnit bond, 90mm white flexible: double/triple bonds10