Definition of Radioactinium. Meaning of Radioactinium. Synonyms of Radioactinium

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Definition of Radioactinium

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Meaning of Radioactinium from wikipedia

- Actinium is a chemical element; it has symbol Ac and atomic number 89. It was first isolated by Friedrich Oskar Giesel in 1902, who gave it the name emanium;...
- potentiometer, also known as a Resistive Digital-to-Analog Converter Radioactinium, abbreviated RdAc, a name given at one time to 227 Th, an isotope of...
- had a very short half life (it is about 300 ns). He also identified radioactinium (thorium-227) and radium D (later identified as lead-210). Rutherford...
- an isotope of polonium identified in the decay chain of radium. RdAc Radioactinium 90 Name given at one time to 227Th, an isotope of thorium. RdTh Radiothorium...
- Actinium β− 98.62% α 1.38% 21.772 a 0.045 5.042 227Th 223Fr 227Th RdAc Radioactinium α 18.68 d 6.147 223Ra 223Fr AcK Actinium K β− 99.994% α 0.006% 22.00...
- (10%) 225Ac 226Th 90 136 226.024903(5) 30.57(10) min α 222Ra 0+ 227Th Radioactinium 90 137 227.0277041(27) 18.68(9) d α 223Ra 1/2+ Trace 228Th Radiothorium...
- (1944-01-31). "Sur l'intensité absolue des raies de conversion interne du radioactinium". Comptes rendus hebdomadaires des séances de l'Académie des sciences...