Radon (symbol Rn) is a chemical element, atomic number 86 on the periodic table.

Characteristics and history[edit | edit source]

Radon, in its most stable form, has an atomic mass of 222, and was discovered by Humans for the first time in Germany on Earth's European continent in the year 1900. (ST reference: Star Fleet Medical Reference Manual)

Appendices[edit | edit source]

References[edit | edit source]

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