noun🔗Share中子 A subatomic particle forming part of the nucleus of an atom and having no charge; it is a combination of an up quark and two down quarks."The nucleus of a helium atom contains two protons and two neutrons. "氦原子的原子核包含两个质子和两个中子。physicselementpartsciencechemistryenergymassChat with AIVocabulary GamePractice Reading
