最終更新日:2024/08/03
Ditechnetium is a radioactive element with the atomic number 43.
正解を見る
Ditechnetium is a radioactive element with the atomic number 43.
編集履歴(0)
Ditechnetium is a radioactive element with the atomic number 43.
Ditechnetium is a radioactive element with the atomic number 43.