Chemistry - Atomic Structure Question with Solution | TestHub

The wave function for an atomic orbital of single electron atom or ion is $\psi (\mathrm{r},\theta ,\varphi )=\frac{2}{3}{\left(\frac{\mathrm{Z}}{3{\mathrm{a}}_0}\right)}^{3/2}(1-\sigma )\left(12-8\sigma +{\sigma }^2\right)\cdot \sigma \cdot {\mathrm{e}}^{-\sigma /2}\cdot \cos \theta$. where $\sigma =\frac{2\mathrm{Zr}}{{\mathrm{na}}_0}$ and ${\mathrm{a}}_0=$ $0.529\mathring{A}$. All other parameters have their usual meaning.