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Inside the AtomSign up
Rutherford's Gold Foil Experiment · Inside the Nucleus · Atomic Number, Mass Number & Isotopes
30 min
Light from AtomsSign up
Energy Levels · Photon Energy: E = hf · Spectra as Evidence
35 min
The Bohr ModelHLSign up
Bohr's Quantisation Conditions · Calculating Energy Levels and Wavelengths · Limitations of the Bohr Model
40 min