Physics – 5.1.1 The atom | e-Consult
5.1.1 The atom (1 questions)
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[Image missing: Diagram of an atom]
Relative masses:
| Proton: 1 (approximately) |
| Neutron: 1 (approximately) |
| Electron: 0 (negligible) |
Note: The mass of an electron is considered negligible compared to the masses of protons and neutrons.