Answer: The nuclear equation for the beta decay is
⁹²₃₈St-------->⁹²₃₉Y + ⁰₋₁e
Explanation:
Beta decay(beta-minus and beta-plus.) occurs due to the fact that some atoms are unstable and to become stable must undergo a decay.
The beta decay that occurs in Strontium is a beta-minus decay,where it changes to another element since its atom gains a proton
A beta decay (beta minus) occurs when an atom emits beta particle ( ⁰₋₁e) Here in Strontium undergoing a beta(minus) decay, the mass number remains the same but a proton was gained. Hence the new isotope is Yttrium ⁹²₃₉Y .
⁹²₃₈St-------->⁹²₃₉Y + ⁰₋₁e
