Question

If a particle has a mass of 1 atomic mass unit and a charge of +1, what particle must it be? * Captionless Image could be proton or neutron electron proton neutron

Answer 1

A particle with a mass of 1 atomic mass unit (amu) and a charge of +1 is a proton. Neutrons have a mass of about 1 amu but no charge, and electrons have a much smaller mass with a charge of -1. Therefore, the particle you are describing is a proton.