noun🔗ShareNeutronenA 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. "Der Kern eines Heliumatoms enthält zwei Protonen und zwei Neutronen.physicselementpartsciencechemistryenergymassChat with AIVocabulary GamePractice Reading
