While the parameters Z and A show a basic structural pattern for atomic nuclei, the actual nuclear masses in their fine differences appear to fluctuate somewhat arbitrarily, indicating that nature does not have an orderly logical framework.
The "touchstone" of nuclear
stability is separation energy [the mass of the nucleus before decay less the
mass of a decay's products], not mass defect [the sum of the nuclear protons
and neutrons masses less the nuclear mass].
The neutron decays into a proton and an electron when it is not part of an
atomic nucleus, showing that it is a mixture of the two. In this case, the
nucleus can be thought of as a collection of A protons and N = A - Z electrons,
with N protons forming neutrons with N electrons.
Author (S) Details
Roger Ellman
The-Origin Foundation, Inc. 1401 Fountaingrove Pkwy, Santa Rosa, CA 95403, USA.
View Book :- https://stm.bookpi.org/NUPSR-V15/article/view/3475
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