A fact from Radon-222 appeared on Wikipedia's Main Page in the Did you know column on 10 March 2019 (check views). The text of the entry was as follows:
Did you know... that radiation from radon-222 and its decay products is the second-leading cause of lung cancer in the United States after cigarette smoking?
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One sometimes finds the symbol Em when this was the element's name; I wonder if it goes back to Rutherford? Double sharp (talk) 12:22, 3 February 2021 (UTC)[reply]
Comparison of three even-even nuclides with medium beta decay half-lives[edit]
My hope: The β- decay branches of 222Rn, 247Cm and 248Bk should all be at the order of 10-5% compared to α decay, so there would still be some chance to observe the decay. 129.104.241.162 (talk) 03:26, 6 March 2024 (UTC)[reply]
