Asked by Anonymous

one neutron is added to the nucleus of an atom of Carbon-12. how has the atom been changed?
It has a greater atomic mass?
Answered by DrBob222
Yes, the mass is greater, the atomic number stays the same (so it's still carbon) but it is an isotope of carbon; i.e., carbon 12 and carbon 13 are isotopes of carbon.
Answered by Anonymous
Thank you!