The change in energy for which of the following processes corresponds to the second ionization energy of magnesium? A)Mg(g)→ Mg²⁺(g)+ 2e^- B)Mg(g)→ Mg⁺(g)+ e^- C)Mg⁺(g)→ Mg²⁺(g)+ e^- D)Mg^-(g)→ Mg(g)+ e^- E)Mg(g)+ e^-→ Mg^-(g)

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Quizplus · Accepted Answer

Second ionization energy is the energy required to remove a second electron from a singly charged ion. This means that the process should involve the removal of an electron from a positively charged magnesium ion. Option C fits this requirement by showing the process of removing an electron from Mg+ ion to form Mg2+ ion. None of the other options involve the formation of Mg2+ ion.

The Change in Energy for Which of the Following Processes