a06 6b7 535 a30 b81 bec 109 5e7 92e e2b 81b 5ea 503 9c0 d37 d57 2e2 7af 844 875 914 344 203 642 b9c dfb 836 381 fab e38 b71 d7f 15c 75f 118 39b 2ce 4fe 660 a6a 763 899 80d c61 8d3 9c8 1c1 64c 45c 938 423 4f2 d42 875 65b f94 4b2 ac2 406 600 9d5 87c 30a 981 0a3 d6c 3e7 2e7 e6a 148 05a b33 1fa ac0 192 c36 8b9 12f c9f 041 01b 43d 782 9b5 ed7 712 5a6 145 79e 608 c2b 7f2 51b 801 5cd 1c6 74f 807 065 4b4
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.
