Diskudhys veu poloniom yn 1898 yn Paris gans Marie ha Pierre Curie. I a dennas poloniom dhyworth moon uraniom, pygvoon (pitchblende). Usys yw avel pennfenten tommder rag lorellow efanvos (kemmys ha 520kj an our). Poos atomek poloniom yw 209, y boynt teudhi yw 254°C ha'y...
Polonium was named after Marie Curie's homeland of Poland. Polonium has few applications, and those are related to its radioactivity: heaters in space probes, antistatic devices, sources of neutrons and alpha particles, and poison. It is extremely dangerous to humans. Elven gymyk yw poloniom...