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Thorium isotope .(90)Th^(232) emits som...

Thorium isotope `._(90)Th^(232)` emits some `alpha`-particle and some `beta`-particle and gets transformed into lead isotope `._(82)Pb^(200)`. Find the number of `alpha`-and `beta`-particles emitted.

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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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  5. In a head-on collision between an alpha-particle and a gold nucleus, t...

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  7. An alpha particle of energy 4MeV is scattered through an angle of 180^...

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  9. What is the impact parameter at which the scattering angle is 10^(@) f...

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  13. Calculate the energy of the hydrogen atom in the states n = 4 and n = ...

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  14. Calculate (i) the radius of the second orbit of hydrogen atom, and (ii...

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  16. The ground state energy of hydrogen atom is -13.6eV. If an electron ma...

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  17. Show that the ionisation potential of hydrogen atom is 13.6 volt.

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

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