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Description

89, Actinium  
Weasyl | Pixiv | Twitter | Inkbunny | Deviant Art | e621
 
227Ac and beryllium can be used in neutron probes that measure the water content of soils.
 
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safe2279468 artist:parclytaxel1505 derpibooru import1686579 applejack213773 earth pony636855 pony1942965 series:joycall6's periodic table136 .svg available10775 absurd resolution75269 actinium3 chemistry437 female1730401 mare935372 neutron probe1 periodic table233 prone36440 smiling427616 soil11 solo1544267 sun9825 vector91540

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