最終更新日：2024/07/29
(physics) The only stable isotope of beryllium, ⁹₄Be, having four protons and five neutrons
正解を見る
beryllium-9
編集履歴（0）
(physics) The only stable isotope of beryllium, ⁹₄Be, having four protons and five neutrons
beryllium-9
DiQt（ディクト）
無料
★★★★★★★★★★
