Radon - Wikipedia
Radon is a chemical element; it has symbol Rn and atomic number 86. It is a radioactive noble gas and is colorless and odorless. Of the three naturally occurring radon isotopes, only 222 Rn …
Radon - Element information, properties and uses | Periodic Table
Element Radon (Rn), Group 18, Atomic Number 86, p-block, Mass [222]. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Radon | Rn (Element) - PubChem
Radon. Radon is a chemical element with symbol Rn and atomic number 86. Classified as a noble gas, Radon is a gas at room temperature.
Radon | Definition, Properties, Effects, & Facts | Britannica
2024年11月6日 · Radon, chemical element, a heavy radioactive gas of Group 18 (noble gases) of the periodic table, generated by the radioactive decay of radium. It is a colorless gas, 7.5 times …
What is Radon? | US EPA - U.S. Environmental Protection Agency
2024年11月20日 · Radon is a radioactive gas that forms naturally when uranium, thorium, or radium, which are radioactive metals break down in rocks, soil and groundwater. People can …
Radon (Rn) - Periodic Table
Radon is a chemical element of the periodic table with chemical symbol Rn and atomic number 86 with an atomic weight of 222 u and is classed as noble gas and is part of group 18 (noble …
Radon Definition, Facts, Symbol, Discovery, Properties, Uses
Radon (pronunciation: RAY-don) is an odorless, radioactive element that belongs to the family of noble gases and is represented by the chemical symbol Rn [1, 2]. It is colorless at room …
Radionuclide Basics: Radon - US EPA
2024年5月6日 · Radon (chemical symbol Rn) is an odorless, colorless, radioactive gas. It comes from the natural decay of uranium and radium found in nearly all rocks and soils. Radon can …
What is Radon? (with pictures) - AllTheScience
2024年5月21日 · Radon is a metallic element with the atomic number 86 and the symbol Rn. On the periodic table of elements, it is found in Group 18 and in Period 6 to the right of astatine . …
Radon (Rn) - Atomic Number 86 - breakingatom.com
2019年12月30日 · Radon (Rn) is a colourless, odourless, radioactive gas non-metal that has the atomic number 86 in the periodic table in Group 18. It has the symbol Rn.