阿摩線上測驗
84. How many protons, neutrons, and electrons does the ion 18O2- have?
(A) 8 protons, 8 neutrons, 8 electrons
(B) 8 protons, 18 neutrons, 8 electrons
(C) 8 protons, 10 neutrons, 10 electrons
(D) 8 protons, 10 neutrons, 8 electrons
(E) 8 protons, 8 neutrons, 10 electrons
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統計： A(0), B(0), C(29), D(1), E(0) #3101835
統計： A(0), B(0), C(29), D(1), E(0) #3101835
