最終更新日：2024/07/29
Eka-astatine is a synthetic element that is a synonym of tennessine.
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Eka-astatine is a synthetic element that is a synonym of tennessine.
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Eka-astatine is a synthetic element that is a synonym of tennessine.
Eka-astatine is a synthetic element that is a synonym of tennessine.
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