Chemistry - Surface Chemistry Question with Solution | TestHub

A. Correct. The probability density for p-orbitals is zero at the nucleus ($r=0$), meaning no p-electron can be found exactly at the nucleus.

B. Correct. The spatial orientation of p and d orbitals helps distribute electrons, minimizing repulsive forces between them in multi-electron atoms.

C. Incorrect. For a 5d-orbital, $n=5$ and $l=2$. The number of angular nodes is $l=2$.

D. Correct. All p-orbitals ($l=1$) have a dumbbell shape. As $n$ increases (e.g., 2p, 3p, 4p), the orbital size and energy increase.