5.1 The atomic structure of hydrogen -5.1.1 The hydrogen spectrum and Bohr's theory 5.1.2 The dual nature of the electron 5.1.3 Schrodinger equation and quantum numbers 5.1.4 The ground state of H atoms 5.1.5 The excited state of HAtoms 回 5.1.1 The hydrogen spectrum and Bohr’s theory 5.1 The atomic structure of hydrogen 5.1.5 The excited state of H Atoms 5.1.4 The ground state of H atoms 5.1.3 Schrödinger equation and quantum numbers 5.1.2 The dual nature of the electron