Question

Plots for $2s$ orbital are:
$X$, $Y$ and $Z$ are respectively

• A. $R$, $R^2$ and $4\pi r^2{R}^2$
• B. $R^2$, $R$ and $4\pi r^2{R}^2$
• C. $4\pi r^2{R}^2$, $R^2$ and $R$
• D. $R^2$, $4\pi r^2{R}^2$ and $R$

Answer 1

The correct option is B $R^2$, $R$ and $4\pi r^2{R}^2$

$Y$ will be definitely '$R$' because value of $R$ cannot be negative, thus $X$ will be $R^2$ and $Z$ will be $4\pi r^{2}R$. $Z$ represents radial probability function; its value will be zero at origin.