Definitions for radon
ˈreɪ dɒnradon

Princeton's WordNetRate this definition:0.0 / 0 votes

1. radon, Rn, atomic number 86noun

   a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health

GCIDERate this definition:0.0 / 0 votes

1. Radonnoun

   An intensely radioactive gaseous element produced by the radioactive decay of radium-226, which is the main isotope of radium found in pitchblende. Chemically it is an inert noble gas. Its atomic symbol is Rn. It has an atomic number of 86. The radon isotope produced by decay of radium has an atomic weight of 222.017, and this isotope decays by alpha emission with a half-life of 3.82 days. Numerous other isotopes have been observed, all radioactive and all having half-lives shorter than that of radon-222. Radon was discovered by M. and Mme. Curie, of Paris, in their studies of the radioactive substances in pitchblende. Radon was originally called radium emanation or exradio.

WiktionaryRate this definition:5.0 / 1 vote

1. radonnoun

   A radioactive chemical element (symbol Rn, formerly Ro) with atomic number 86, one of the noble gases.

2. Etymology: Contraction of radium emanation, since the element appears in the radioactive decay of radium.

WikipediaRate this definition:0.0 / 0 votes

1. Radon

   Radon is a chemical element with the symbol Rn and atomic number 86. It is a radioactive, colourless, odourless, tasteless noble gas. It occurs naturally in minute quantities as an intermediate step in the normal radioactive decay chains through which thorium and uranium slowly decay into various short-lived radioactive elements and lead. Radon itself is the immediate decay product of radium. Its most stable isotope, 222Rn, has a half-life of only 3.8 days, making it one of the rarest elements. Since thorium and uranium are two of the most common radioactive elements on Earth, while also having three isotopes with half-lives on the order of several billion years, radon will be present on Earth long into the future despite its short half-life. The decay of radon produces many other short-lived nuclides, known as "radon daughters", ending at stable isotopes of lead.Unlike all other intermediate elements in the aforementioned decay chains, radon is, under standard conditions, gaseous and easily inhaled, and therefore a health hazard. It is often the single largest contributor to an individual's background radiation dose, but due to local differences in geology, the level of exposure to radon gas differs from place to place. A common source is uranium-containing minerals in the ground, and therefore it accumulates in subterranean areas such as basements. Radon can also occur in some ground water like spring waters and hot springs. Climate change may cause radon previously trapped underground to be released as permafrost thaws, particularly in areas like the Arctic, Alaska, Canada, Greenland and Russia. It is possible to test for radon and use techniques such as sub slab depressurization for mitigation.Epidemiological studies have shown a clear link between breathing high concentrations of radon and incidence of lung cancer. Radon is a contaminant that affects indoor air quality worldwide. According to the United States Environmental Protection Agency (EPA), radon is the second most frequent cause of lung cancer, after cigarette smoking, causing 21,000 lung cancer deaths per year in the United States. About 2,900 of these deaths occur among people who have never smoked. While radon is the second most frequent cause of lung cancer, it is the number one cause among non-smokers, according to EPA policy-oriented estimates. Significant uncertainties exist for the health effects of low-dose exposures. Unlike the gaseous radon itself, radon daughters are solids and stick to surfaces, such as airborne dust particles, which can cause lung cancer if inhaled.

ChatGPTRate this definition:0.0 / 0 votes

1. radon

   Radon is a radioactive, colorless, odorless, and tasteless noble gas that naturally occurs as a decay product of uranium or thorium. It is extremely dense and considered a health hazard due to its radioactivity. Prolonged exposure to radon gas is known to cause lung cancer. It is often found in soil and rock, and can seep into buildings and homes.

WikidataRate this definition:0.0 / 0 votes

1. Radon

   Radon is a chemical element with symbol Rn and atomic number 86. It is a radioactive, colorless, odorless, tasteless noble gas, occurring naturally as an indirect decay product of uranium or thorium. Its most stable isotope, ²²²Rn, has a half-life of 3.8 days. Radon is one of the densest substances that remains a gas under normal conditions. It is also the only gas under normal conditions that only has radioactive isotopes, and is considered a health hazard due to its radioactivity. Intense radioactivity has also hindered chemical studies of radon and only a few compounds are known. Radon is formed as one intermediate step in the normal radioactive decay chains, through which thorium and uranium slowly decay into lead. Thorium and uranium are the two most common radioactive elements on earth; they have been around since the earth was formed. Their naturally occurring isotopes have very long half-lives, on the order of billions of years. Thorium and uranium, their decay product radium, and its decay product radon, will therefore continue to occur for tens of millions of years at almost the same concentrations as they do now. As radon itself decays, it produces new radioactive elements called radon daughters or decay products. Unlike the gaseous radon itself, radon daughters are solids and stick to surfaces, such as dust particles in the air. If such contaminated dust is inhaled, these particles can stick to the airways of the lung and increase the risk of developing lung cancer.

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Radon

   Radon. A naturally radioactive element with atomic symbol Rn, atomic number 86, and atomic weight 222. It is a member of the noble gas family and released during the decay of radium and found in soil. There is a link between exposure to radon and lung cancer.

Suggested ResourcesRate this definition:0.0 / 0 votes

1. radon

   Song lyrics by radon -- Explore a large variety of song lyrics performed by radon on the Lyrics.com website.

Surnames Frequency by Census RecordsRate this definition:0.0 / 0 votes

1. RADON

   According to the U.S. Census Bureau, Radon is ranked #66164 in terms of the most common surnames in America.
   
   The Radon surname appeared 299 times in the 2010 census and if you were to sample 100,000 people in the United States, approximately 0 would have the surname Radon.
   
   89.9% or 269 total occurrences were White.
   6.6% or 20 total occurrences were of Hispanic origin.
   2.6% or 8 total occurrences were Black.

Matched Categories

1. • Element
   • Noble Gas

Usage in printed sourcesFrom: 

1. [["1700","1"],["1728","1"],["1729","1"],["1742","1"],["1757","1"],["1759","1"],["1761","1"],["1763","1"],["1764","1"],["1766","1"],["1771","1"],["1776","2"],["1779","1"],["1784","1"],["1787","1"],["1791","1"],["1792","1"],["1793","1"],["1794","1"],["1798","1"],["1799","1"],["1801","1"],["1802","4"],["1803","1"],["1804","2"],["1805","1"],["1808","3"],["1809","2"],["1810","6"],["1812","4"],["1814","1"],["1816","3"],["1817","4"],["1819","3"],["1820","1"],["1822","2"],["1823","2"],["1824","1"],["1825","2"],["1826","1"],["1827","2"],["1830","3"],["1831","1"],["1832","2"],["1833","2"],["1834","4"],["1836","1"],["1837","1"],["1838","1"],["1839","1"],["1840","4"],["1841","2"],["1842","2"],["1843","4"],["1844","3"],["1845","4"],["1846","1"],["1847","3"],["1848","1"],["1849","4"],["1850","4"],["1851","9"],["1852","1"],["1853","2"],["1854","5"],["1855","8"],["1856","4"],["1857","5"],["1858","1"],["1859","2"],["1860","6"],["1861","2"],["1862","3"],["1863","2"],["1864","4"],["1865","3"],["1866","3"],["1867","3"],["1868","3"],["1869","1"],["1870","3"],["1871","1"],["1872","2"],["1873","4"],["1874","2"],["1875","3"],["1876","2"],["1877","2"],["1878","2"],["1879","2"],["1880","7"],["1881","3"],["1882","7"],["1883","4"],["1884","6"],["1885","1"],["1886","2"],["1887","3"],["1889","4"],["1890","4"],["1891","5"],["1892","4"],["1893","3"],["1894","6"],["1895","5"],["1896","5"],["1897","4"],["1898","5"],["1899","7"],["1900","8"],["1901","3"],["1902","12"],["1903","3"],["1904","5"],["1905","3"],["1906","13"],["1907","7"],["1908","18"],["1909","7"],["1910","16"],["1911","7"],["1912","9"],["1913","4"],["1914","8"],["1915","6"],["1916","1"],["1917","2"],["1919","26"],["1920","37"],["1921","6"],["1922","7"],["1923","41"],["1924","23"],["1925","185"],["1926","117"],["1927","149"],["1928","872"],["1929","156"],["1930","887"],["1931","147"],["1932","606"],["1933","273"],["1934","415"],["1935","274"],["1936","643"],["1937","419"],["1938","584"],["1939","695"],["1940","684"],["1941","482"],["1942","481"],["1943","785"],["1944","236"],["1945","443"],["1946","953"],["1947","938"],["1948","1751"],["1949","1286"],["1950","1308"],["1951","1216"],["1952","863"],["1953","1422"],["1954","1710"],["1955","1670"],["1956","1599"],["1957","1452"],["1958","1617"],["1959","2821"],["1960","1306"],["1961","2261"],["1962","1799"],["1963","2090"],["1964","3141"],["1965","1726"],["1966","3575"],["1967","2224"],["1968","1380"],["1969","1470"],["1970","1713"],["1971","1833"],["1972","1817"],["1973","1905"],["1974","1956"],["1975","1392"],["1976","1573"],["1977","1632"],["1978","1867"],["1979","2324"],["1980","2210"],["1981","2602"],["1982","2656"],["1983","3270"],["1984","4836"],["1985","3929"],["1986","4178"],["1987","8789"],["1988","8645"],["1989","8053"],["1990","12097"],["1991","8795"],["1992","12717"],["1993","11289"],["1994","11829"],["1995","11426"],["1996","14285"],["1997","12844"],["1998","16562"],["1999","9620"],["2000","9816"],["2001","10272"],["2002","11595"],["2003","10572"],["2004","11388"],["2005","16795"],["2006","8317"],["2007","7777"],["2008","8737"]]

Anagrams for radon »

1. adorn

2. and/or

3. andro

4. NORAD

5. drona

6. donar

How to pronounce radon?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say radon in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of radon in Chaldean Numerology is: 1

2. Pythagorean Numerology

   The numerical value of radon in Pythagorean Numerology is: 7

Examples of radon in a Sentence

1. Bill Brodhead:

   Each state radon or radiation department should have a list of qualified contractors, it is usually best to have a local qualified contractor do the work to get better service.

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=radon
2. ^ GCIDE
   https://gcide.gnu.org.ua/?q=radon
3. ^ Wiktionary
   https://en.wiktionary.org/wiki/Radon
4. ^ Wikipedia
   https://en.wikipedia.org/wiki/Radon
5. ^ ChatGPT
   https://chat.openai.com
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=radon
7. ^ Surnames Frequency by Census Records
   https://www.census.gov/topics/population/genealogy/data/2010_surnames.html
8. ^ Usage in printed sources
   https://books.google.com/ngrams/graph?content=radon