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Which radioisotopes have the same decay mode and have half-lives greater than
hour?
(1) Au-198 and N-16 (3) 1-131 and P-32
(2) Ca-37 and Fe-53 (4) Tc-99 and U-233

Respuesta :

lulu1991
The answer is (3) I-131 and P-32. They both have β- decay mode and with half-lives greater than hour. You can get these half-lives and decay mode from table N selected radioisotopes.
superman1987

The correct answer is (3)


I-131 and P-32


The explanation:


according to attached table:


- we can see that the half life of p 32 is 14.28d (more than one hour)

- and the half life of I-131 is 8.021 d (more than one hour)


and They both have β- decay mode and with half-lives greater than hour.


Ver imagen superman1987

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