Neutron number  From Wikipedia, the free encyclopedia Jump to:
navigation, search     Element C Isotope/Nuclide 14C With atomic
number 14 With neutron number 14  Nuclides that have the same
neutron number but a different proton number are called
isotones. This word was formed by replacing the p in isotope
with n for neutron. Nuclides that have the same mass number are
called isobars. Nuclides that have the same neutron excess are
called isodiaphers.[1]   Neutron number is primarily of interest
for nuclear properties. For example, actinides with odd neutron
number are usually fissile (fissionable with slow neutrons)
while actinides with even neutron number are usually not fissile
(but are fissionable with fast neutrons).  Only 57 stable
nuclides have an odd neutron number, compared to 200 with an
even neutron number. No odd-neutron-number isotope is the most
naturally abundant isotope in its element, except for
beryllium-9 which is the only stable beryllium isotope,
nitrogen-14, and platinum-195.      1. ^ Teh