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**1. Homework Statement**

A hydrogen atom in the ground state can be described by the following wavefunction:

[tex]\Psi(r) = \frac{C}{\sqrt{4\pi}}e^{- \frac{r}{a_{0}}}[/tex]

Normalise this wavefunction.

**3. The Attempt at a Solution**

I did this and got:

[tex]C = \sqrt{\frac{8\pi}{a_{0}}}[/tex]

I have no way of checking this, so I was wondering if anybody could tell me whether I am right or wrong.

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