`10^(-3) kg` of a radioactive isotope (atomic mass 226) emits `3.72xx10^(10) alpha`- particles in a
Channel: Doubtnut
Date: 2021-11-19

`10^(-3) kg` of a radioactive isotope (atomic mass 226) emits `3.72xx10^(10) alpha`- particles in a second. Calculate the half-life of the isotope. If `4.2xx10^(2)` joule energy is released in one hour in this process what is the average energy of the `alpha`-particles? Avogadro number is `6.02xx10^(26)//` kmol and `log_(e)2 =0.693`.