How to write the Orbital Diagram for Protactinium?
Protactinium (Pa), with 91 electrons, possesses the electron configuration [Rn] 5f² 6d¹ 7s². It shows filled inner shells as radon (Rn), followed by two electrons in the 5f subshell, one in the 6d, and two outermost in the 7s subshell.
