Calculate the Overall Change in Energy When an Electron Is

question 7

Multiple Choice

Calculate the overall change in energy when an electron is transferred from a sodium atom, Na, to a chlorine atom, Cl, to form a sodium ion, Na⁺, and chlorine ion, Cl^-. The first ionization energy of sodium is 5.14 eV. The electron affinity of chlorine is +3.62 eV.

• A) 1.52 kJ mol^-1
• B) 845 kJ mol^-1
• C) 147 kJ mol^-1
• D) 495 kJ mol^-1

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