EnvironmentalChemistry.com: Periodic Table of Elements (Radon)
This site offers comprehensive information for each element including: who, when up to 40 properties (chemical & physical); over 3, 600 nuclides (isotopes); over 4, 400 nuclide decay modes; the element names in 10 different languages; and more. In addition chemistry and technical terms are linked to their definitions in the site's chemistry and environmental dictionary.
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Chemical Elements.com - Radon (Rn)
Home About This Site Comments Help Links Window Version Show Table With: Name Atomic Number Atomic Mass Electron Configuration Number of Neutrons Melting Point Boiling Point Date of Discovery Crystal Structure Element Groups: Alkali Metals Alkaline Earth Metals Transition Metals Other Metals Metalloids Non-Metals Halogens Noble Gases Rare Earth Elements Basic Information | Atomic Structure | ...
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Visual Elements - Radon
Discovered : by F.E. Dorn Isolated in Halle, Germany Origin : The name is derived from radium. Description : Radon was first discovered as the gas produced from radium as it decayed in sealed ampoules. It is colourless and odourless, and is chemically inert, but it is dangerous because it gives off alpha rays. There is a detectable amount in the atmosphere, and concentrations can build up ...
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