Which of the following represents the change in electronic configuration that is associated with the first ionization of magnesium? A) [Ne]3s¹3p¹ → [Ne]3s¹ + e^- B) [Ne]3s² → [Ne]3s¹3p¹ C) [Ne]3s² → [Ne]3s¹ + e^- D) [Ne]3s² + e^- → [Ne]3s²3p¹

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The electronic configuration of magnesium is [Ne]3s2. The first ionization of magnesium involves removing one electron from the outermost 3s orbital to form a positively charged ion. The correct representation of this process is [Ne]3s2 → [Ne]3s1 + e-. Choice A is incorrect because it incorrectly shows the formation of a negative ion. Choice B is incorrect because it shows the removal of an electron from the 3p orbital, which is not involved in the first ionization of magnesium. Choice D is incorrect because it shows the formation of a doubly charged ion, which is not consistent with the first ionization potential of magnesium.

Which of the Following Represents the Change in Electronic Configuration