最終更新日:2024/07/30
Eka-osmium is a synthetic element that has the atomic number 108.
正解を見る
Eka-osmium is a synthetic element that has the atomic number 108.
編集履歴(0)
Eka-osmium is a synthetic element that has the atomic number 108.
Eka-osmium is a synthetic element that has the atomic number 108.