The model of Danish physicist Niels Bohr was trying to continue Rutherford's work.
To explain the errors of the previous model, Bohr suggested that the atom has quantized energy. Each electron can only have a certain amount of energy, so it is quantized.
Bohr's model represents the energy levels. Each electron has its energy. It is compared to the orbits of the planets of the Solar System, where each electron has its own orbit and with determined amounts of energy.
The laws of classical physics do not fit this model. When an electron jumps from a lower level to a higher level, it absorbs energy, and when it returns to a lower level, the electron emits radiation in the form of light.
Bohr organized the electrons into layers or levels of energy. Each layer has a name and must have a maximum number of electrons.
There are seven layers or levels of energy around the core: K, L, M, N, O, P, Q.
Look at the table showing the name of the layers, their quantum number and the maximum number of electrons in each.
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