noun🔗Share原子番号84の、希少で放射性の高い化学元素（記号Po）A rare, highly radioactive chemical element (symbol Po) with atomic number 84."Because of its extreme radioactivity and toxicity, working with polonium requires specialized equipment and strict safety protocols. "その極度の放射能と毒性のため、ポロニウムを扱うには特殊な設備と厳格な安全プロトコルが必要です。elementchemistrysubstancematerialscienceChat with AIVocabulary GamePractice Reading
