63b 888 7c9 cd3 986 8ba 2c7 97c 4d3 379 3f3 eb4 095 ba3 add 0ed 23f b29 6e7 66e 391 2e1 421 36c f86 858 b74 afc 680 097 8b3 b89 daa e55 1e0 b8b dbf ff4 f55 b37 967 3e9 d71 c80 4f1 de8 bcc 31e d3c 8e9 7ba a87 fd2 ddb 448 ace c75 467 5ce 7e5 819 af5 370 099 57f 7c0 18d ee8 a89 e35 783 5b2 2d4 042 22e ccb 7f4 79d ed7 58b 3e9 069 ead a38 962 a44 30d 786 f74 32b 594 752 6ce f0b e35 6c0 642 88c 829 fc7
radon (Rn), chemical element, a heavy radioactive gas of Group 18 (noble gases) of the periodic table, generated by the radioactive decay of radium. (Radon was originally called radium emanation.) Radon is a colourless gas, 7.5 times heavier than air and more than 100 times heavier than hydrogen.
Why is radon radioactive noble gas?
Radon (Rn) is a radioactive, colorless, odorless and tasteless gas that occurs naturally as the decay product of the elements radium, uranium and thorium. It is a noble (or inert) gas, meaning it is inactive chemically and combines with other substances only under extreme conditions.
What is radon radioactive?
Radon is a radioactive noble gas that comes from the decay of radium in the soil. Radium is also a daughter or progeny nuclide of Uranium (Uranium decay). Radon is a colorless, odorless, invisible gas that can only be detected through the use of proper equipment and protocols.
Is radon a stable or radioactive element?
Radon is a noble gas and is generally chemically non-reactive. However, radon is radioactive in that there are no stable isotopes. The most stable isotope, radon-222 (222Rn or Rn-222) has a half-life of 3.8 days (92 hours).
Why is radon named radon?
Radon was discovered by Friedrich Ernst Dorn, a German chemist, in 1900 while studying radium's decay chain. Originally named niton after the Latin word for shining, “nitens,” it has been known as radon since 1923.
Is radon The only radioactive noble gas?
radon (Rn), chemical element, a heavy radioactive gas of Group 18 (noble gases) of the periodic table, generated by the radioactive decay of radium. (Radon was originally called radium emanation.)…radon.
| atomic number | 86 |
|---|---|
| electron config. | (Xe)4f145d106s26p6 |
How does radon become radioactive?
Radon is also moderately soluble in water, and it can be absorbed by groundwater flowing through rock or sand. Radon undergoes radioactive decay, when it releases ionizing radiation and forms “daughter” elements, known as decay products.
Is radon a noble gas?
radon (Rn), chemical element, a heavy radioactive gas of Group 18 (noble gases) of the periodic table, generated by the radioactive decay of radium.
How is radon made?
Radon comes from the breakdown of naturally-occurring radioactive elements (such as uranium and thorium) in soils and rocks. As part of the radioactive decay process, radon gas is produced.
What are 5 facts about radon?
Here are a few facts about radon, and what you can do to help keep your family healthy and safe.
- Radon is radioactive. Radon is a naturally occurring radioactive gas. …
- Radon causes cancer. …
- No immediate symptoms. …
- You must test for radon. …
- Radon is present indoors and outdoors. …
- Radon can build up in any building.
