What is the missing symbol in the following nuclear reaction?
²⁰⁹₈₃Bi + ⁴₂He→^?_??
+ 3 ¹₀n

Question

What is the missing symbol in the following nuclear reaction? ²⁰⁹₈₃Bi + ⁴₂He→^?_?? + 3 ¹₀n

Quizplus · Accepted Answer

The nuclear reaction involves the transmutation of one element into another through the absorption of a helium nucleus (alpha particle) and the emission of three neutrons. The atomic number (protons) and mass number (protons + neutrons) must be conserved in the process. The atomic number increases by 2 (from Bi to At), and the mass number increases by 3 (from 209 to 212), making choice A correct.

What Is the Missing Symbol in the Following Nuclear Reaction