What is the missing particle in the reaction below? ¹p + ⁰e → ?

Question

Quizplus · Accepted Answer

The missing particle in this reaction is a neutron (n). This is because the sum of the atomic numbers and the sum of the mass numbers must be conserved in a nuclear reaction. The atomic number of the product on the left side is 11 (from the subscript in the symbol), and the mass number is 31 (the sum of the subscripts and superscripts). Therefore, we need a particle with an atomic number of 0 and a mass number of 1 to balance the equation. This can only be a neutron, which has an atomic number of 0 and a mass number of 1.

What Is the Missing Particle in the Reaction Below? 1p

What Is the Missing Particle in the Reaction Below? ¹p