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In a head on collision between an alpha ...

In a head on collision between an alpha particle and gold nucleus, the minimum distance of approach is `4xx10^(-14)m`. Calculate the energy of of `alpha`-particle. Take Z=79 for gold.

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SL ARORA-ATOMS, NUCLEI AND MOLECULES-Problems For Self Practice
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  3. An alpha particle of K.E. 10^(-12)J exhibits back scattering from a go...

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  4. A protom of energy 1 MeV is incident head-on on a gold nucleus (Z = 79...

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  18. Calculate the ionisation potential of a single ionised He-atom.

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