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(a) State the laws of radioactive decay ...

(a) State the laws of radioactive decay and deduce the relation:
`N=N_(0)e^(-lambdat)`
`N=N_(0)e^(-lambdat)`
Where the symbols have their usual meaning.
(b) (i) Write symbolically the process expressing the `beta^(+)` decay of `""_(11)Na^(22)` . Also write the basic nuclear process underlying this decay.
(ii) Is the nucleus formed in the decay of the nucleus `""_(11)Na^(22)` an isotope or isobar?

Text Solution

Verified by Experts

The correct Answer is:
b
(i) `""_(11)Na^(22) to ""_(+1)e^(0) + ""_(10)Ne^(22)` + v (neutrino)
(ii) As a different nucleus is formed having same mass number as sodium,`""_(10)Ne^(22)` is an isobar.
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