SHAPES OF MOLECULES - Electron repulsion theory
Molyorbital
8 model Collection Set
Art.Nr. MOS-902-8
This set contains sufficient parts
to make the eight atomic models shown in the adjacent photograph.
The different shapes are examples of the orientations of the bonds and cover co-ordination numbers 1 to 6. Lone pairs are represented by brown spheres.or brown pear-shaped parts.
The 2 extra pear shaped parts are included in the set to enable protonated models to be made.e.g. Acid/Base theory, the formation of H30+ as a result of the migration of H+ from Hydrogen chloride.
| Co-ordination Nr. | Shape | Formula | Compound | Co-ordination Nr. | Shaper. | Formula | Compound | |
| 1 | Linear | HCl | Hydrogen chloride | 3 | Pyramidal | NH3 | Ammonia | |
| 2 | Linear | BeCl2 | Beryllium chloride | 4 | Tetrahedral | CH4 | Methane | |
| 2 | Bent | H2O | Water | 5 | Trigonal bipyramidal | PCl5 | Phosphorus pentachloride | |
| 3 | Trigonal planar | BH3 | Boron trihydride | 6 | Octahedral | SF6 | Sulphur hexafluoride |