neutron number


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Related to neutron number: Isotopes

neutron number

n
(General Physics) the number of neutrons in the nucleus of an atom. Symbol: N
References in periodicals archive ?
Other models suggest that proton number 120 or 126, or neutron number 172, might be the ticket.
The neutron number N=82 and proton numbers around Z = 50 correspond to spherical hard nuclei.
For example, when an iron nucleus captures a neutron, it becomes a new isotope of iron, one whose proton number is 26--as is true for every iron atom--but whose neutron number has just increased by one (from, say, 30 to 31).