最終更新日：2024/07/29
(physics) The normal isotope of helium, ⁴₂He, that has two neutrons
正解を見る
helium-4
編集履歴（0）
(physics) The normal isotope of helium, ⁴₂He, that has two neutrons
helium-4
DiQt（ディクト）
無料
★★★★★★★★★★
