# Problem: Detailed calculations show that the value of Zeff  for the outermost electrons in Si and Cl atoms is 4.29+ and 6.12+ , respectively.Predict Zeff for a valence electron in P, phosphorus, based on the Slaters rule calculations for Si and Cl.

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Slater's Rule

$\overline{){{\mathbf{Z}}}_{{\mathbf{eff}}}{\mathbf{=}}{\mathbf{Z}}{\mathbf{-}}{\mathbf{S}}}$

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Detailed calculations show that the value of Zeff  for the outermost electrons in Si and Cl atoms is 4.29+ and 6.12+ , respectively.

Predict Zeff for a valence electron in P, phosphorus, based on the Slaters rule calculations for Si and Cl.

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