What is the effective nuclear charge experienced by the valence electrons of Ca? (Hint: Use Slater's rule.)
A) 2.85
B) 20
C) 17.5
D) 3.00
E) 3.15

Question

Quizplus · Accepted Answer

The effective nuclear charge experienced by the valence electrons of Ca is 2.85. This can be calculated using Slater's rule, which states that the effective nuclear charge experienced by an electron in an atom is equal to the atomic number of the atom minus the shielding constant. The shielding constant is a measure of the extent to which the inner electrons shield the valence electrons from the nucleus. For Ca, the atomic number is 20 and the shielding constant is 17.15. Therefore, the effective nuclear charge experienced by the valence electrons of Ca is 20 - 17.15 = 2.85.

What Is the Effective Nuclear Charge Experienced by the Valence