Question

What is the mass number, atomic number, and charge of 1 neutron and 1 proton?

Answer 1

A proton and a neutron are both subatomic particles found in the nucleus of an atom, but they have different properties:

### Proton:
- **Mass Number**: 1 (the mass number of an individual proton is typically considered to be 1)
- **Atomic Number**: 1 (the atomic number of a proton is 1, which defines it as hydrogen in terms of atomic properties)
- **Charge**: +1 (protons are positively charged)

### Neutron:
- **Mass Number**: 1 (the mass number of an individual neutron is also considered to be 1)
- **Atomic Number**: 0 (neutrons do not contribute to the atomic number since they are neutral)
- **Charge**: 0 (neutrons are electrically neutral)

To summarize:
- **Proton**: Mass Number = 1, Atomic Number = 1, Charge = +1
- **Neutron**: Mass Number = 1, Atomic Number = 0, Charge = 0