Considering both sides of the equation representing a nuclear reaction, which is the same before and after the reaction?(1 point)

Responses

the number of alpha particles
the number of alpha particles

the energy
the energy

the types of atoms
the types of atoms

​the total number of protons

1 answer

In a nuclear reaction, what remains the same before and after the reaction is the total number of protons.

This is part of the conservation of nucleons and helps ensure that atomic numbers and charge are balanced in the reaction process.