結果 : is polonium more dangerous than plutonium
8:55

Plutonium, the Most Dangerous Man Made Element

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0:33

Is polonium deadlier than plutonium?

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0:56

Uranium is safe compared to this...

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1:53

How is this way more radioactive than uranium? (radium)

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1:09

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Death By Polonium-210 - How Russia Takes Out One of Their Own Spies

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16:45

REAL PLUTONIUM

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The Polonium plot: Feature documentary

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Touching mercury

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What is Polonium-210?

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5 Most DANGEROUS Elements On Planet Earth

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