radioactive element
/,reɪdioʊ'æktɪv_'ɛləmənt/
Definition that contains radioactive element
- at a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium
- ac a radioactive element of the actinide series; found in uranium ores
- fr a radioactive element of the alkali-metal group discovered as a disintegration product of actinium
- francium a radioactive element of the alkali-metal group discovered as a disintegration product of actinium
- atomic number 87 a radioactive element of the alkali-metal group discovered as a disintegration product of actinium
- jean-frederic joliot French nuclear physicist who was Marie Curie's assistant and who worked with Marie Curie's daughter who he married (taking the name Joliot-Curie); he and his wife discovered how to synthesize new radioactive elements (1900-1958)
- actinon any of a series of radioactive elements with atomic numbers 89 through 103
- joliot-curie French nuclear physicist who was Marie Curie's assistant and who worked with Marie Curie's daughter who he married (taking the name Joliot-Curie); he and his wife discovered how to synthesize new radioactive elements (1900-1958)
- actinide any of a series of radioactive elements with atomic numbers 89 through 103
- atomic number 89 a radioactive element of the actinide series; found in uranium ores