File:Decay Chain Thorium.svg

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	18:57, 3 December 2015		1,310 × 2,020 (11 KB)	Sacamol	Half life of Actinium 6.1 minutes => 6.1 hours (see w:en:Actinium#Isotopes

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Width	1310
Height	2020