Thank you so much for your help :) Part A Watch the yidee on electron affinity a

Question

Thank you so much for your help :)
Part A Watch the yidee on electron affinity and identify which of the following statements matches each reaction. Check all that apply. View Available Hint(s) Reset Help Electron affinity is-349 kJ.Electron affinity is +349 kJ. Electron affinity is -142 kJ. Electron affinity is +142 kJ. Electron affinity is -710 kJ Process involves single electron addition Electron affinity is+710 kJ. Process is endothermic. Cl(g) +e-CI (g) 0(8)+-o() e0 (g) All three reactions None of the reactions Submit Electron affinity and electron configuration of the atoms

Explanation / Answer

Electron affinity is -349 KJ for Cl(g) + e- = Cl-(g)

Electron affinity is -142 KJ for O(g) + e- = O-(g)

Electron affinity is +710 KJ for O-(g) + e- = O2-(g)

Reason: The first electron affinity is negative when you add the first electron to the gaseous oxygen atom to result in fluorine configuration, whereas the second electron affinity for the gaseous oxygen atom to result in a stable neon configuration as the energy is required to overcome the inter-electron repulsion.

All the three processes involve single electron addition as shown in the above reactions.

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