Quantum Theory of the Hydrogen Atom 217
and are shown for several atomic states. (The quantity plotted is ^2 , not ^2 dV.)
Since ^2 is independent of , we can obtain a three-dimensional picture of ^2 by
rotating a particular representation about a vertical axis. When this is done, we see that
the probability densities for sstates are spherically symmetric whereas those for otherbei48482_ch06 1/31/02 4:14 PM Page 217