Engelsk substantiv: atomic number 94 | |||
1. | atomic number 94 (om masse eller substans) a solid silvery grey radioactive transuranic element whose atoms can be split when bombarded with neutrons; found in minute quantities in uranium ores but is usually synthesized in nuclear reactors; 13 isotopes are known with the most important being plutonium 239 | ||
Ord med samme betydning (synonymer) | plutonium, Pu | ||
Mindre spesifikke uttrykk | chemical element, element | ||
Mere spesifikke uttrykk | plutonium 239 | ||