Atom
- Created by: armykid795
- Created on: 22-03-15 15:49
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- Atoms
- Proton
- Relative charge: +1
- Ralative mass: very small.
- Electron
- Relative charge: -1
- Relative mass: 1
- Neutron
- Relative charge: 0
- Relative mass: 1
- Proton
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