10. Periodic Properties of the Elements

Periodic Trend: Effective Nuclear Charge

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Problem 129

Textbook Question

Textbook Question# One method for calculating Zeff is to use the equation

where E is the energy necessary to remove an electron from an atom and n is the principal quantum number of the elec-tron. Use this equation to calculate Zeff values for the highest-energy electrons in potassium (E = 418.8 kJ/mol) and krypton (E = 1350.7 kJ/mol).Verified Solution

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