Question

According to Slater's rule, calculate value of effective nuclear charge (Zeff) on valence shell electron of carbon.​

Answer 1

Answer:

The more shielding, the further the valence shell can spread out and the bigger atoms will be. The effective nuclear charge is the net positive charge experienced by valence electrons. It can be approximated by the equation: Zeff = Z – S, where Z is the atomic number and S is the number of shielding electrons.

Answer 2

First, we need to know about what is Slater's rule and how to calculate the value of effective nuclear charge(Zeff) using it.

Step 1: Write the electron configuration of the atom in the following form:

(1s) (2s, 2p) (3s, 3p) (3d) (4s, 4p) (4d) (4f) (5s, 5p) ...

Step 2: Identify the electron of interest, and ignore all electrons in higher groups (to the right in the list from Step 1). These do not shield electrons in lower groups

Step 3: Slater's Rules is now broken into two cases:

1. the shielding experienced by an s- or p- electron

• electrons within the same group shield 0.35, except the 1s which shield 0.30
• electrons within the n-1 group shield 0.85
• electrons within the n-2 or lower groups shield 1.00

2. the shielding experienced by nd or nf valence electrons

• electrons within thesame group shield 0.35
• electrons within the lower groups shield 1.00.