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Title: Electron orbitals of the second main shell
Caption: Electron orbitals of the second main shell. In these drawings, the nucleus of the atom is located at the intersection of the axes. The eight electrons that would be placed in the second shell of Bohr's model are distributed among these four orbitals in the current model of the atom, with two electrons per orbital.
Keywords: orbitals, second main shell, Bohr model, nucleus