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## Homework Statement

One wave function of H like atom is [tex]\psi=\frac{\sqrt{2}}{81\sqrt{\pi}a_{0}^{3/2}}(6-\frac{r}{a_{0}})\frac{r}{a_{0}}(e^{\frac{-r}{3a_{0}}})cos \theta[/tex]

How many nodal surfaces are there?

1)1

2)2

3)3

4)none of these

## The Attempt at a Solution

Its an objective question which I need to answer in less than a minute. Is it possible to do so?

The next thing that I assume i that the wave function is given in polar coordinate form, isn't it?? [tex]\psi=f(r,\theta, \phi)[/tex]???

phi is absent what does it mean? I guess it means that its the p - orbital. then the anwer must be 2. Am I right????

Last but not the least. I am keen upon seeing the 3D picture this wave function generates. I have MATLAB but I dont know how to code in polar coordinate and all. Will somebody code this wave function for me which is compatible with MATLAB 2008?? Please. I shall be very grateful.

Thanks a lot.