Question

The number of nodal planes in the $p_x$ orbital is/are:

• A. One
• B. Two
• C. Three
• D. Zero

Answer 1

The correct option is A One

Number of nodal planes = $l$
In the case of $p$ subshell, we have three orbitals i.e., overall 3 nodal planes corresponding to $p_x,p_y,p_z$ orbitals.
Hence, corresponding to the $p_x$ orbital, only one nodal plane exists - $YZ$ plane.