noun 다운로드 🔗공유 양성자 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 hydrogen atom has only one proton in its nucleus. " 수소 원자는 핵에 양성자 하나만 가지고 있다. physics element chemistry science AI와 채팅어휘 게임독해 연습