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Cp.L
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Homework Statement
Show that the expectation value for r for an electron in the groundstate of a one-electron-atom is:
<r>=(3/2)a[itex]_{0}[/itex]/Z
Homework Equations
Expectationvalue:
<f(x)>=∫[itex]\psi[/itex]*f(x)[itex]\psi[/itex]dx, -∞<x>∞
[itex]\psi[/itex][itex]_{100}[/itex]=C[itex]_{100}[/itex] exp(-Zr/a[itex]_{0}[/itex]), [itex]a_{o}\ =\ 0.5291\ \times\ 10^{-10}m , h\ =\ 6.626\ \times\ 10^{-34}\ J\ s[/itex]
The Attempt at a Solution
Im stuck..