radium emanation in English
adon (Chemistry)
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1. Related to Actinon: radium emanation actinium emanation A radioisotope associated with actinium identified in 1904, which has a half-life of 3.96 seconds and correspond to 219Rn.
2. 76 rows · Actinon Actinium emanation 86 133 219.0094802(27) 3.96(1) s α 215 Po 5/2+ Trace: 220 Rn Thoron Thorium emanation 86 134 220.0113940(24) 55.6(1) s α 216 Po 0+ Trace: β − β − (rare) 220 Ra 221 Rn 86 135 221.015537(6) 25.7(5) min β − (78%) 221 Fr 7/2(+) α (22%) 217 Po 222 Rn: Radon Radium emanation Emanation Emanon Niton 86 136 222