Mineral Species containing Radon (Rn)

**Radon (Rn) Element Properties**
Atomic Mass	222
Atomic Number	86
Name Origins	Named after the element radium.
Year Discovered	1900
Discovery Credits	Discovered by F. E. Dorn at Halle, Germany.
Remarks	Colorless, odorless gas produced by radioactive decay of radium. Little studied because of hazardous radiation which destroys any compounds that are formed. Chemically should be like xenon. Radon is present in uranium and thorium minerals as a radioactive gas which can enter the atmosphere.
References	Emsley, J., 1991; THE ELEMENTS : Sec. Ed., Clarendon Press, Oxford, 251 p.
See Also	WebElements, ChemiCool

Atomic Mass

222

Atomic Number

86

Name Origins

Named after the element radium.

Year Discovered

1900

Discovery Credits

Discovered by F. E. Dorn at Halle, Germany.

Remarks

Colorless, odorless gas produced by radioactive decay of radium. Little studied because of hazardous radiation which destroys any compounds that are formed. Chemically should be like xenon. Radon is present in uranium and thorium minerals as a radioactive gas which can enter the atmosphere.

References

Emsley, J., 1991; THE ELEMENTS : Sec. Ed., Clarendon Press, Oxford, 251 p.

Symbol	Isotope Mass	Isotope Nuclide Number	Isotope Number	Natural Abundance	Half-life	Half-life Units	Decay Mode	Decay Mode MeV	Decay Mode %
Rn	219.009479	219	86	0.0001%	3.96	Seconds	alpha	6.946	100.0%
Rn	220.011368	220	86	0.1000%	55.6	Seconds	alpha	6.404	100.0%
Rn	222.01757	222	86	99.9000%	3.83	Days	alpha	5.59	100.0%

There are no minerals containing Radon (Rn)