Joy Lucas / Suddenly, and sadly, the world has become familiar with Polonium. A great deal has been written about this substance and here's a bit more, from a homeopathic point of view, nestled amongst other remedies that are there on the same lines (15 and 16) of the periodic table. 'Nitrogen is to Oxygen as Phosphorus is to Sulphur. Arsenic is to Selenium as Antimony is to Tellurium. So what is Bismuth to Polonium?' About these elements, their relation in the periodic table ánd in homeopathy.