415 754 9c6 d07 b04 25d 5b1 b13 91a 2b6 7cf 33d afc 78c ab4 8e7 239 7f4 abe 8fa c98 ab3 f9f e13 a40 28d 47f e33 1ca 7d1 f7f c80 230 ae4 ac2 d72 a20 847 62e 722 901 3f9 0ea 032 164 d8b 4b6 fff e28 923 bc1 3d4 f97 6d5 472 9ec ee6 750 273 003 f18 090 9cc ae3 9e9 fe1 158 6a4 f17 eb9 402 235 0c2 dfc 08e d57 6b1 6ec 6d6 c96 15b 2d5 ec9 737 b4f bad 9c4 3ce b10 2ae 313 253 4af 406 66d 2d1 b1a 890 19f a9c
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.
