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Periodic Elements Community › My Category › The Elements › [Actinides] › Th - Thorium
Nuclear facts about Th-232

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Nuclear facts about Th-232
Martin Offline
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09-21-2014, 06:23 AM (This post was last modified: 09-21-2014, 06:39 AM by Martin.)
Th-232 is the only primordial isotope of Thorium. Its abundance in natural Thorium is almost 100%.
Its half-life is 1.405E+10 years.

Some significant facts about Th-232 decay:
Decay mode: alpha (100%), Q-value=4082.8 keV
Gamma rays: 63.83 keV (0.263%), 140.86 keV (0.021%)
X-rays: 15.236 keV (2.97%), 12.339 keV (2.39%), 17.848 keV (0.68%), ...
Alpha rays: 4012.3 keV (78.2%), 3947.2 keV (21.7%), ...
Spontaneous Fission: <1.8E-9%
Decay heat: 2.654E-9 W/g

More details here: http://nucleardata.nuclear.lu.se/toi/nuc...iZA=900232
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