The element fluorine has 9 electrons. which is the electron configuration for an atom of fluorine?

The electron configuration of an atom refers to how its electrons are distributed in atomic orbitals. Since the element fluorine has 9 electrons, the electron configuration for an atom of fluorine is: 1s² 2s² 2p⁵. It should also be noted that the equations of quantum mechanics determine the number of electrons that can fill each shell or subshell.