radon

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radon
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UFP Historical Society
Symbol Rn
Atomic Weight 222
Atomic Number 86
Discovered 1900
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FASA Timeline
(FASA Roleplaying Game)


Radon, element 86, was discovered in Germany on Earth in 1900. The most stable isotope discovered had a mass of 222.[1]

Wikipedia

Notes and References

  1. ↑ Palestine, Eileen and Geoffrey Mandel (Editors). Star Fleet Medical Reference Manual. Star Trek. Book. Originally published by Star Fleet Productions, Inc.. Ballantine Books. 1977.
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