The Bohr model for potassium describes the structure of the potassium atom, which contains 19 electrons. The nucleus of the potassium atom has 19 protons and 20 neutrons, surrounded by three electron shells. The first shell is filled with two electrons, the second shell is filled with eight electrons, and the third shell is filled with nine electrons. The outermost electron in the third shell is the valence electron, which is responsible for the chemical properties of potassium. The Bohr model shows that the energy levels of the electrons are quantized, meaning that they can only exist at certain specific values. The energy level of an electron is determined by its principal quantum number, which corresponds to the shell in which the electron resides.
