The wave function (Ψ) of 2s is given by:Ψ2s=12√2π(1a0)12{2−ra0} – InterviewSolution

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1.	The wave function (Ψ) of 2s is given by:Ψ2s=12√2π(1a0)12{2−ra0}e−r2a0At r=r0, radial node is formed. Thus for 2s, r0 in terms of a0 is:
Answer» The wave function $(Ψ)$ of $2 s$ is given by: $Ψ_{2 s} = \frac{1}{2 \sqrt{2 π}} {(\frac{1}{a_{0}})}^{\frac{1}{2}} {2 - \frac{r}{a_{0}}} e^{- \frac{r}{2 a_{0}}}$ At $r = r_{0}$ , radial node is formed. Thus for $2 s$ , $r_{0}$ in terms of $a_{0}$ is:

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