keywords: Molecular model
COCHRANES OF OXFORD LTD
ENGLAND
Unit Large Demonstration Set
With the Unit Large Demonstration Set you can show molecular shapes with rotating single bonds and non-rotating double and triple bonds, structural isomers and optical isomers, ring structures, the chair-boat ‘flip’ of cyclohexane and VSEPR theory.The set allows you to make models of hydrocarbons, alcohols, amines, organic and inorganic acids and bases, carbohydrates, benzene, chlorinated molecules, inorganic molecules and more - that the whole class can see!Set contains 70 atom spheres with bonding pegs and 90 bonds.
Component
Code Description Size
Quantity in
the set 1950
Model atoms
0392 Carbon (black) 44mm diameter 18
0391 Oxygen (red) 44mm diameter 6
0390 Nitrogen (blue) 44mm diameter 4
0393 Halogen (green) 44mm diameter 6
0395 Sulfur (yellow) 44mm diameter 2
0394 Metal (silver) 44mm diameter 2
0389 Other element (white) 44mm diameter 2
0398 Hydrogen (white) 25mm diameter 30
Total atoms 70
Bonding pegs
0396 radial 48
0397 polar 24
0398 4 & 8 coordinate 72
Total bonding pegs 144
Bonds
4080 Rigid tube (metal) 65 mm 36
4081 Rigid tube (metal) 83 mm 40
4082 Rigid tube (metal) 125 mm 4
4084 Flexible tube (white) 90 mm 10
Total bonds: 90
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