Transcription
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- US Pronunciation
- US IPA
- UK Pronunciation
- UK IPA
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- [rey-don]
- /ˈreɪ dɒn/
- /ˈreɪ.dɒn/
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- US Pronunciation
- US IPA
-
- [rey-don]
- /ˈreɪ dɒn/
Definitions of radon word
- noun radon a chemically inert, radioactive gaseous element produced by the decay of radium: emissions produced by outgassing of rock, brick, etc. are a health hazard. Symbol: Rn; atomic number: 86; atomic weight: 222. 1
- noun radon chemical element: gas 1
- uncountable noun radon Radon is a radioactive element in the form of a gas. 0
- noun radon a colourless radioactive element of the rare gas group, the most stable isotope of which, radon-222, is a decay product of radium. It is used as an alpha particle source in radiotherapy. Symbol: Rn; atomic no: 86; half-life of 222Rn: 3.82 days; valency: 0; density: 9.73 kg/m3; melting pt: –71°C; boiling pt: –61.7°C 0
- noun radon a radioactive, gaseous chemical element, one of the noble gases, formed, together with alpha rays, as a first product in the atomic disintegration of radium: symbol, Rn; at. no., 86 0
Information block about the term
Origin of radon
First appearance:
before 1915 One of the 14% newest English words
First recorded in 1915-20; rad(ium) + -on2
Historical Comparancy
Parts of speech for Radon
noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
radon popularity
A common word. It’s meaning is known to most children of preschool age. About 84% of English native speakers know the meaning and use the word.
Most Europeans know this English word. The frequency of it’s usage is somewhere between "mom" and "screwdriver".
radon usage trend in Literature
This diagram is provided by Google Ngram ViewerTop questions with radon
- what is radon?
- what is radon gas?
- where does radon come from?
- what is radon testing?
- how to test for radon?
- what is radon used for?
- why is radon gas dangerous at high levels?
- where is radon found?
- how to get rid of radon?
- what is a radon test?
- what does radon smell like?
- what causes radon?
- how much does radon mitigation cost?
- how long does radon test take?
- which property would radon most likely have?