The first electron affinity value for oxygen is _______ and the second electron affinity value is ________.
A)unfavorable (endothermic),favorable (exothermic)
B)unfavorable (endothermic),unfavorable (endothermic)
C)favorable (exothermic),favorable (exothermic)
D)favorable (exothermic),unfavorable (endothermic)
E)More information is needed.

Question

Quizplus · Accepted Answer

The first electron affinity value for oxygen is favorable (exothermic), indicating that oxygen readily gains an electron to form an anion. However, the second electron affinity is unfavorable (endothermic), as adding an electron to an already negatively charged ion requires energy.

The First Electron Affinity Value for Oxygen Is _______ and the Second