Andy Dyson - nucleon energy levels

[Jonathan Jaffrey]

Hi Andy,
I do BE / A or Z curves and their interpretation, extended to peaks for
"Magic Nos" (Nx4) & some mention of shell models c/w electron shell filling
in chemistry but that's as far as I go in school.
Cheers,
Jonathan Jaffrey
LBC

Subject: nuclear energy levels

In explaining why energy is generated in fission reactions the
assessment
schedule in the level 3 atoms paper from 2005 says

The binding energy per nucleon for
plutonium is less than that for strontium
and barium. This means that the nucleons
in the plutonium nucleus are at higher
energy levels than those in the nuclei of
strontium and barium. This extra energy
must be lost when the strontium and
barium nuclei are formed.

as well as

The binding energy per nucleon is the
cause of the mass deficit per nucleon. As
the number of nucleons is conserved and
the products have a higher binding energy
per nucleon, they also have greater mass
deficit. The overall loss in mass is
converted to kinetic energy and radiation.


Is it normal at level 3 to teach nucleon energy levels?

Andy Dyson, Kerikeri


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