What is effective nuclear charge of S2 - and S? Does the Zeff differs from ions and atoms of the same element.

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Chemistry

Sloane Davidson

6 May, 15:40

What is effective nuclear charge of S2 - and S? Does the Zeff differs from ions and atoms of the same element.

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Cruz Mitchell · Answer 1

Effective nuclear charge is an estimate of the charge experienced by the valence electrons.

Sulfur has 6 valence electrons and a charge of 6+.

The 3s electrons in sulfur are the 3p electrons, because the former spend more time closer to the nucleus.

Using Slater's Rules, effective nuclear charge of sulfur is + 5.5.

2) No! The Zeff doesn't differ from ions and atoms of the same element.