a rare, radioactive, metallic chemical element of the lanthanide series, atomic number 61, which was first produced artificially in a nuclear reactor and is present in trace amounts as a fission product in uranium ores, haruldaste muldmetallide hulka kuuluv radioaktiivne keemiline element, järjenr 61
a rare, radioactive, metallic chemical element of the lanthanide series, atomic number 61, which was first produced artificially in a nuclear reactor and is present in trace amounts as a fission product in uranium ores, haruldaste muldmetallide hulka kuuluv radioaktiivne keemiline element, järjenr 61
a rare, radioactive, metallic chemical element of the lanthanide series, atomic number 61, which was first produced artificially in a nuclear reactor and is present in trace amounts as a fission product in uranium ores, haruldaste muldmetallide hulka kuuluv radioaktiivne keemiline element, järjenr 61
promethium . EKI terminibaas Esterm. Estonian Language Institute, Sõnaveeb 2026. https://127.0.0.1:5577/search/unif//esterm/promethium/1/eng (08.10.2026)
