Framework models built from the FMM set show to scale the mutual relations of atoms in a molecule. The molecular framework is specified by internuclear distances and accurate bond angles. Multiple bonds and pi orbital systems are designated using special connectors. *features only two basic components - metal valence clusters (tetrahedron, trigonal, bipyramid, and octahedron) and plastic tubing - that allow the representation of any atom of the periodic chart. *metal valence clusters define bond angles precisely and can be adjusted to construct models of molecules with unusual bond angles. *color-coded plastic tubing enables clear identification of atoms. *2-color tubing of univalent atoms bonded to other atoms shows univalent atoms with correct covalent and van der Walls radii. *shows molecular orbitals and electron pair orbitals. *components are easy to assemble and are reusable. *includes a separate booklet of instructions and a carrying case.
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