拡張周期表とは - わかりやすく解説 Weblio辞書

拡張周期表

出典: フリー百科事典『ウィキペディア（Wikipedia）』 (2024/05/09 04:45 UTC 版)

拡張周期表（かくちょうしゅうきひょう、extended periodic table）とは、ドミトリ・メンデレーエフの周期表を未知の超重元素の領域まで論理的に発展させた周期表である。未知の元素についてはIUPACの元素の系統名に準じて表記される。原子番号119（ウンウンエンニウム）以降の元素は全て未発見である（発見報告無し）。

出典

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