Answer & explanation
Correct answer: option 1
Radio active element emits $\alpha $ particle $\beta$ particle , and neutrino
$\alpha $ particle is same as helium nucleus
$\beta$ particle is same as electron.
Correct answer: option 1
Radio active element emits $\alpha $ particle $\beta$ particle , and neutrino
$\alpha $ particle is same as helium nucleus
$\beta$ particle is same as electron.