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Download QR code; Print/export Download as PDF; ... Radon 86 Rn [222] 7: ... This periodic table is the prime form presented at this English wikipedia.
The template shows a periodic table with small cells. Each cell is wikilinked to the element's article, and the background color is the category as used (commonly) on this wiki. Each cell is wikilinked to the element's article, and the background color is the category as used (commonly) on this wiki.
When this number is >118, the template expands with periods 8 and above, adding the (predicted) elements with atomic number >119. Apart from this 118/119 switching, the parameter is not used as an atomic number. {{Periodic table (32 columns, micro) | number = 119}}
The instability of 222 Rn, its most stable isotope, makes radon one of the rarest elements. Radon will be present on Earth for several billion more years despite its short half-life, because it is constantly being produced as a step in the decay chains of 238 U and 232 Th, both of which are abundant radioactive nuclides with half-lives of at ...
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Download QR code; Print/export ... Radon: Francium: Radium: Actinium: ... Allotropes Appearance <element> IN THE PERIODIC TABLE Periodic table Atomic number ...
Enjoy a classic game of Hearts and watch out for the Queen of Spades!
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