BRAINCAKEElectrons
1913 Niels Bohr proposed that electrons orbit in shells at fixed distances from the nucleus and with fixed energies. 1926 Shroedinger worked out the mathematical equation that described the dual particle and wave properties of electrons.
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More in Atomic Structure
- Relative Mass and Relative Charge
- Atomic Number and Mass Number
- Isotopes
- Isotopes of Carbon
- Electron Shells
- The Mass Spectrometer
- Time of Flight Mass Spectrometer
- Mass Spectra of Elements
All 22 lessons in Atomic Structure · All AQA AS-level Chemistry topics