SEARCH Articles Figures Tables A cross section shows an electron cloud representation of the 90 probability contour of the 2p orbital. An electron occupies both regions of a 2p orbital equally and spends 90 of its time within this volume. Note the nodal plane at the nucleus. C, An accurate representation of the 2pj probability contour. The 2p and 2py orbitals lie along the x and y axes, respectively. D, The stylized depiction of the 2p probability contour used throughout the text. E, In an atom, the three 2p orbitals occupy mutually perpendicular regions of space, contributing to the atom s overall spherical shape. [Publishers Imprint] See Also: A cross section shows an electron cloud representation of the 90 probability contour of the 2p orbital. An electron occupies both regions of a 2p orbital equally and spends 90 of its time within this volume. Note the nodal plane at the nucleus. C, An accurate representation of the 2pj probability contour. The 2p and 2py orbitals lie along the x and y axes, respectively. D, The stylized depiction of the 2p probability contour used throughout the text. E, In an atom, the three 2p orbitals occupy mutually perpendicular regions of space, contributing to the atom s overall spherical shape.