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So little is known about it, because there is only about 1 ATOM OF FRANCIUM IN A CUBIC FOOT OF URANIUM ORE!

对它所知,为在1立方英的铀矿石中,有1钫原子!

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neoteric, neoterism, neoterist, neoterize, Neotetranychus, neotetrazolum, neotetrine, neothalamus, neothaverine, neothelomycin,

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3G, 401(K), a,

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趣味化学实验:Periodic Videos

A lump of Plutonium, which is very radioactive, is really quite warm to touch. And francium, which I think is more radioactive, is probably very warm.

性很强的钚,起来真的很认为性更强的钫可能非常

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Neotremata, neotrichy, neotrist, neotrizine, Neotrombicula, neotron, neotropical, neotropin, neotype, neouliron,

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3G, 401(K), a,
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