E.1 Structure of the atom
E.1.2—Nuclear notation
E.1.3—Atomic energy levels
E.1.4—Atomic transitions
E.1.5—Photon energy
E.1.6—Spectra and composition
E.1.7 (HL)—Nuclear radius
E.1.8 (HL)—High-energy scattering deviations
E.1.9 (HL)—Closest approach
E.1.10 (HL)—Bohr hydrogen levels
E.1.11 (HL)—Bohr angular momentum
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