Everyone at that time imagined the atom as a ... the electrons in his model lined up with the regular patterns (spectral series) of light emitted by real hydrogen atoms. Bohr's theory that ...

This 'solar system' model of the atom is the way that most people think about atoms today. It is known as the Rutherford-Bohr model of atomic structure. The neutron was difficult to discover ...

Therefore, electrons cannot be arranged at random, but they must have fixed levels of energy within each type of atom. Bohr's 'solar system' model of the atom is the way that most people think ...