noun ダウンロード 🔗共有 陽子 A positively charged subatomic particle forming part of the nucleus of an atom and determining the atomic number of an element, composed of two up quarks and a down quark. Examples : "The number of protons in an atom's nucleus defines what element it is. " 原子核内の陽子の数は、それが何元素であるかを決定します。 physics chemistry element science energy substance structure technical compound AIとチャット語彙ゲーム読解練習
