Bromine does not react with osmium with anything like the energy of chlorine. The free elements do not appear to combine at all, even at moderately high temperatures. Only a small quantity of a ...

A colossal meteor crashed into earth approximately 215 million years ago, a Japanese research team said in a recent release.

Osmium Tetroxide (OsO4), a severe oxidizer, is highly poisonous even at low exposure levels. It must be handled with appropriate precautions. In particular, inhalation at concentrations well below ...