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P Orbital

Atomic Structure

By Anne Marie Helmenstine, Ph.D., About.com

Diagram of a P Orbital

P Orbital

ACD Labs
At any given moment, an electron can be found at any distance from the nucleus and in any direction according to the Heisenberg Uncertainty Principle. The p orbital is a dumbbell-shaped region describing where an electron can be found, within a certain degree of probability. The shape of the orbital depends on the quantum numbers associated with an energy state.

All p orbitals have l = 1, with three possible values for m (-1, 0, +1). The wave function is complex when m = 1 or m = -1.

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