17. 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
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統計: 尚無統計資料
統計: 尚無統計資料