This pack contain 10 green balls representing chlorine atoms and the diameter of each atom is 17 mm. Each atom contains a single hole used to connect to other atoms. Larger 20 mm atoms are available separately.
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.