Box Molecules 2 is to be used in conjunction with box Molecules 1 only, to build up organic compounds.
Contents:
4 Sulphur atoms, yellow, hexavalent
8 Sulphur atoms, yellow, bivalent
4 Phosphor atoms, violet, pentavalent
4 Nitrogen atoms, blue, pentavalent
4 Nitrogen atoms, blue, trivalent
8 Carbon atoms, black, quadrivalent
4 Oxygen atoms, red, bivalent
4 Universal building blocks, grey, monovalent
80 Flexible connecting pieces, grey
3 Models of benzene ring, decomposable, black