This pack contain 10 blue balls representing nitrogen atoms, for instance, and the diameter of each atom is 23 mm. Each atom has two holes arranged at 105° meaning two bonds may be represented. If you want to make a third bond (as in ammonia for instance) or show lone pairs we also supply blue 3- and 4-hole atoms.
Why would I need these? You could use them to represent a nitrogen atom in a compound such as pyridine or NH2– if you don’t want to add a lone pair.
This pack is for extending an existing set or for replacing lost parts.
The Molymod® system is the original, unique, dual-scale system of high quality low-cost molecular models. These enormously popular sets are ideal for students but are also used by scientists all over the world.