English English Wikipedia has an article on:neutron numberWikipedia Noun neutron number (plural neutron numbers) (nuclear physics) The number of neutrons in the nucleus of an atom or isotope. Symbol: N Coordinate terms atomic number mass number Translations number of neutrons in the nucleus Finnish: neutroniluku German: Neutronenzahl f Italian: numero neutronico m Tagalog: bilang ng awansik Wikiwand - on Seamless Wikipedia browsing. On steroids.