Engelsk substantiv: atomic number 84 | |||
1. | atomic number 84 (om masse eller substans) a radioactive metallic element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor | ||
Ord med samme betydning (synonymer) | Po, polonium | ||
Mindre spesifikke uttrykk | metal, metallic element | ||