释义 |
atomic number 99 ThesaurusNoun | 1. | atomic number 99 - a radioactive transuranic element produced by bombarding plutonium with neutronseinsteinium, Es, Emetal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. |
atomic number 99 Related to atomic number 99: Element 100Synonyms for atomic number 99noun a radioactive transuranic element produced by bombarding plutonium with neutronsSynonymsRelated Words |