What is the effective nuclear charge for an electron in the outermost shell of a fluorine atom, F (atomic number 9)? How about one in the outermost shell of a sulfur atom, S (atomic number 16)?
A)5; 6
B)7; 6
C)7; 8
D)7; 14

Question

Quizplus · Accepted Answer

The effective nuclear charge (Z_eff) is calculated as Z - S, where Z is the atomic number and S is the shielding constant. For fluorine, Z_eff = 9 - 2 = 7. For sulfur, Z_eff = 16 - 10 = 6.

What Is the Effective Nuclear Charge for an Electron in the Outermost