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The binding energy per nucleon varies in different nuclei, being a maximum in the region of iron and nickel, and getting progressively less as the heavier nuclei are approached, Therefore when a uranium nucleus splits into two nuclei of lighter elements, the total binding energy is increased, and this results in a loss of mass. The destroyed mass appears as energy, from the relation E = mc2. You can read more and see the binding energy graph in the link below. It is also evident why fusion of light nuclei like hydrogen also releases energy, as in this part of the graph binding energy increases as the nuclei get heavier.

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15y ago

The mass deficit is caused by the fact that the binding energy per nucleon increases as the size of the nucleus reduces, until iron/nickel are reached when it is a maximum. The equivalent energy to the mass deficit, from E = mc2, is released as energy. See the link below for more information and a graph of nucleon binding energy (a nucleon is another name for a proton or a neutron)

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Q: What happened in fission when the products have less mass than the starting material?
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Which are not products of the fission of uranium?

See the link below for the fission products; the elements (isotopes) not listed are not fission products.


What is the starting material for nuclear fission?

You must not ask "what element", but "what isotope". Uranium-235 is one example of an ISOTOPE that is appropriate for nuclear fission. Uranium-238 is the same for chemical reactions, but for purposes of nuclear reactions, different isotopes must be considered to be different types of atoms.


What is the chemistry of nuclear fission?

This is the essentially the chemistry of fission products.


What is fission product?

Fission products are the fragments resulting from the fission of heavy nuclids during nuclear fission process


How do the products of a fusion differ from the products of a fission reaction?

One thing that makes fusion products different from fission products obviously is the fact that fusion products are heavier than the original two nuclei and fission products are lighter than the original nucleus


Why is nuclear fusion less harmful than a nuclear fission?

Lack (or reduced) fission products. Fission products emit most of the harmful radiation in fallout.


None of the products of nuclear fission of uranium are radioactive?

The answer is FALSE. Products of Nuclear fission of Uranium are highly radioactive.


How long will a material from a power plant remain radioactive?

All radioactivity decays with time. Some fission products from uranium fission will remain active for thousands of years, others decay to insignificance within a few years.


What products do you gain by nuclear fission?

The products which are created as a result of nuclear fission are Pu-239 and a lot of nuclear waste.


Why is it called Nuclear Fission?

It is called nuclear fission as in this process the heavy nuclei are split into fragments (or fission products).


Are the products of nuclear fussion radioactive?

no, but the products of fission are radioactive


What are the fission products in the figure?

Generat