A Russian scientist called Dmitri Mendeleev produced one of the first practical periodic tables in the nineteenth century. The modern periodic table is based closely on the ideas he used.

More serious ambitions to do something in chemistry started at high school with a crazy chemistry teacher, Mr Griffioen, who looked exactly like Mendeleev. Professor Sjoerd Harder Professor Harder’s ...

A Russian scientist called Dmitri Mendeleev produced one of the first practical periodic tables in the nineteenth century. The modern periodic table is based closely on the ideas he used.