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Answer Posted / shashwat
Fission: The breaking down of a Nucleus (not atom) into
smaller nuclei. It is usually induced by a neutron.
For example, a Helium nucleus (called alpha particle) is
divided into two 4He(+2) --> 2H(+1) + 2H(+1)
A lot of enery is released in the process.
Fusion: This happens when two nuclei combines to form a
larger nuclei. Huge amount of enery is needed to start
this. Because its not easy to bring two positively charged
nuclei closer.
When they combine, a huge amount of energy is released.
This usually happens in the stars.
The enery required to start the fusion comes from the
gravitational force between the particles.
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would know if the magnetic moment of 4He has been measured experimentally. Indeed, while 3He is given in the Rhagavan table, there is no mention of 4He. Of course it is theoretically zero but has this been verified by an EXPERIMENT?
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