The graph between variation of probability density, $\psi^2(r)$ and distance of the electron from the…
The graph between variation of probability density, $\psi^2(r)$ and distance of the electron from the nucleus, $r$ is shown below. This represents
$1 s-$ orbital
$2 s$ - orbital
$3 s-$ orbital
$2 p$-orbital
Solution
The region where probability density function, $\psi_{(\mathrm{r})}^2$ reduces to zero is called nodel surfaces or simply nodes ns orbital has $(\mathrm{n}-1)$ nodes.
Given graph has one node. So it should be 2 s -orbital. General formula for calculating radial nodes in $(\mathrm{n}-1-1)$
