Editing Shielding effect (section)

==Strength per electron shell or orbital==

The wider the [[electron shell]]s are in space, the weaker is the electric interaction between the electrons and the nucleus due to screening. Further, because of differences in orbital penetration, we can order the screening strength, ''S'', that electrons in a given orbital (s, p, d, or f) provide to the rest of the electrons thus:
<math display="block">S(\mathrm{s}) > S(\mathrm{p}) > S(\mathrm{d}) > S(\mathrm{f}) .</math>