Chemistry

Chemistry

Problem

Partial data for the electron affinities of Group 17 elements are shown below. Cl: −349 kJ mol−1-349\,\text{kJ mol}^{-1} Br: −324 kJ mol−1-324\,\text{kJ mol}^{-1} I: _____ At: −270 kJ mol−1-270\,\text{kJ mol}^{-1} Which of the following values is most consistent with the missing entry for iodine? a) −330 kJ mol−1-330\,\text{kJ mol}^{-1} b) +20 kJ mol−1+20\,\text{kJ mol}^{-1} c) −295 kJ mol−1-295\,\text{kJ mol}^{-1} d) −250 kJ mol−1-250\,\text{kJ mol}^{-1}

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