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RADON 222 [1 record]

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Record 1 - external organization data 2000-08-09

English

Subject field(s)
  • Chemistry
  • Compartment - Canadian Nuclear Safety Commission
CONT

Natural radon consists of three isotopes, one from each of the three natural radioactive disintegration series (uranium, thorium, and actinium series). The longest lived isotope, radon-222 (3.823-day half-live) ... arises in the uranium series.

OBS

The name radon is sometimes reserved for this isotope to distinguish it from the other two natural isotopes, called thoron and actinon because they originate in the thorium and actinium series, respectively.

French

Domaine(s)
  • Chimie
  • Tiroir - Commission canadienne de sûreté nucléaire
CONT

Le radon correspond à l'élément chimique de numéro atomique 86. [...] Les isotopes de l'élément 86 proviennent, par radioactivité alpha, des isotopes du radium [...] On connaît aujourd'hui une vingtaine de ces isotopes, et, en particulier, le radon 222, provenant du radium, dont la période est de 3,8 jours [...]

Spanish

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