Question

Select the correct plot of radial probability function for $2s$-orbital.

• A.
• B.
• C.
• D.

Answer 1

The correct option is B

(b) is correct because the $2s$ orbital has 1 radial node, according to formula
number of radial nodes $=n-l-1$
for $2s$ $n=2$ and $l=0$
so, the number of radial nodes $=2-0-1=1$