Atoms, molecules and ions, Dalton's atomic theory, protons, neutrons and electrons, atomic and mass numbers, isotopes, relative atomic mass, the mole and Avogadro constant, and electron arrangement.
In these notes
- Particles of matter
- Dalton's atomic theory
- Subatomic particles
- Isotopes
- Relative atomic mass
- The mole
- Electron arrangement
- Percentage composition
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