In which orbital does an electron in a lead atom experience the greatest effective nuclear charge?
A)1s
B)4p
C)5s
D)6s
E)5d

Question

Quizplus · Accepted Answer

The effective nuclear charge experienced by an electron in an atom increases as the distance between the electron and the nucleus decreases. Since the 1s orbital is the closest to the nucleus, the electron in this orbital will experience the greatest effective nuclear charge.

In Which Orbital Does an Electron in a Lead Atom