Question

An atom contains one proton, one electron, and one neutron. Which two particles are most similar in mass?

Answer 1

Answer:

proton and neutron

Explanation:

i just did on edgen

Answer 2

Answer:

the proton and the neutron

Explanation:

An atom is made up of subatomic particles; neutrons, protons and electrons. The protons are positively charged subatomic particles found in the nucleus with a mass equal to 1.6 \times 10^{-27} kg.  The electrons are negatively charged particles of an atom found in the orbital shells in constant motion. They have a mass equal to 9.1 \times 10^{-31} kg.  The neutrons are particles found in the nucleus that have no charge and have a mass equal to 1.6 \times 10^{-27} kg. therefore protons and neutrons are similar in mass.