a. A heavy, radioactive, gaseous element; inert; the heaviest known gas. Symbol, Rn. Formed by the disintegration of uranium. Used similarly to radium in medicine. Radon build-up is a health consideration in uranium mines. Handbook of Chemistry and Physics, 3
b. Heaviest known gas. Colorless as a gas; yellow to orange-red, phosphorescent, opaque crystals; sp gr of liquid, 4.4 (at -62 degrees C); and of solid, 4.0; soluble in water; and slightly soluble in alcohol and in organic liquids. All 18 known isotopes from radon-204 to radon-224 are radioactive. Radon-222 emanates from thorium; half-life, 54.5 s; and an alpha particle emitter; and radon-219 or actinon emanates from actinium; half-life, 3.92 s; and an alpha particle and a gamma ray emitter. One part of radon exists in 1 sextillion parts of air. Handbook of Chemistry and Physics, 2
Source: Dictionary of Mining, Mineral, and Related Terms












    What Topic Is Your Geology Paper On?  

 ENTER YOUR TOPIC HERE:    

Over 70,000 Research Papers, Essays & Term Papers - Ready to Download!

<Navigation>


Search!


<Index>

Acoustics
Agriculture
Anthropology
Archaeology
Architecture
Biology
Biotechnology
Cancer
Chemistry
Composers
Dance
Electronics
Environment
Fine Art
Geology
Invertebrate
Plant
Political Science
Psychology
Scientists
Sociology


<Top Level>

WebRef.org
About Us
Copyright Notice
Privacy Statement


Iverson Software: Providing Reliable & Innovative Education Solutions since 1987!

About Us  DeveloDex™  OptiMall™  Success Tools  Tabularium™  WebRef™

Google
Search WWW Search webref.org


K12 Shipping
JourneyEd.com is the leading supplier of discounted software to students and faculty.


icon



Easy CGI Web Hosting
This site hosted by EASY CGI Web Hosting
Iverson Software Co., is not responsible for typographical errors. Information deemed to be accurate, but not guaranteed. Offers subject to change at any time. Copyright © 1987-2006 Iverson Software Co. Some material copyright of their respective holders. All Rights Reserved Worldwide.