File:Radon220 decay in a cloud chamber.jpg
From Infogalactic: the planetary knowledge core
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Summary
Thoron gas (220Rn, T1/2 : 55 sec) decay by emiting an alpha particle to 216Po (T1/2 : 0,14 sec, Eα =6,28 MeV). This nucleus of Po216 is unstable and decay immediately into 212Pb giving a second alpha particle. The 212Pb decay by beta- but it's half life is too long to see the electron (T1/2 : 10,6 hrs, β-). We observe "V" shapes (2 alpha particles) which come from the radioactive decay of 220Rn into 216 Po and 216 Po into 212 Pb
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 06:29, 13 January 2017 | | 1,436 × 746 (353 KB) | 127.0.0.1 (talk) | Thoron gas (220Rn, T1/2 : 55 sec) decay by emiting an alpha particle to 216Po (T1/2 : 0,14 sec, Eα =6,28 MeV). This nucleus of Po216 is unstable and decay immediately into 212Pb giving a second alpha particle. The 212Pb decay by beta- but it's half life is too long to see the electron (T1/2 : 10,6 hrs, β-). We observe "V" shapes (2 alpha particles) which come from the radioactive decay of 220Rn into 216 Po and 216 Po into 212 Pb |
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