Zeff is a good nuclear charge and is calculated by the formula:
Zeff = Z - S
Z refers to the quantity of protons and S is that the Slater constant.
<h2>Further Explanation
</h2>
Cations have 11 protons, the quantity of core electrons in sodium-ion is 2.
If the core electron accounts for 1.00 and also the negatron accounts for 0.00 then S = 2 for both ions.
<h3>Therefore, for Na⁺, Zeff = 11 - 2 = 9
</h3>
The F⁻ ion has 9 protons, the quantity of core electrons within the F⁻ ion is 2. Therefore, for F⁻: Zeff = 9 - 2 = 7
<h3>Therefore, Zeff for Na⁺ and F⁻ are 9 and seven, respectively.
</h3>
On the premise of Slater's rule, for s and p orbitals, electrons within the same shell contribute 0.35 and electrons within the n-1 shell contribute 0.85.
S = (0.85 × 2) + (0.35 × 7)
= 4.15
<h3>Therefore, per Slater's rules,
</h3>
For Na⁺, Zeff = 11 - 4.15 = 6.85
For F⁻, Zeff = 9 - 4.15 = 4.85
Thus, Zeff for Na⁺ and F⁻ calculated per Slater's rules is 6.85 and 4.85, respectively.
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Zeff brainly.com/question/11629172#
Cations brainly.com/question/11629172#
Details
Grade: College
Subject: Chemistry
Keyword: Zeff, cations, core