| Particles of the atom | Charge | Mass | Location |
| Proton | Positive | 1 | Inside the nucleus |
| Neutron | No Charge | 1 | Inside the nucleus |
| Electron | Negative | 1 | Outside the nucleus |
Structure of an Atom
| Particles of the atom | Charge | Mass | Location |
| Proton | Positive | 1 | Inside the nucleus |
| Neutron | No Charge | 1 | Inside the nucleus |
| Electron | Negative | 1 | Outside the nucleus |