Which of the following represents the change in electronic configuration that is associated with the first ionization energy of barium? A)[Xe]6s¹6p¹ → [Xe]6s¹ + e^- B)[Xe]6s² → [Xe]6s¹6p¹ C)[Xe]6s² → [Xe]6s¹ + e^- D)[Xe]6s² + e^- → [Xe]6s²6p¹

Question

Quizplus · Accepted Answer

The first ionization energy is the energy required to remove an electron from an atom in its gaseous state. In the case of barium, it has an electronic configuration of [Xe]6s^2 5d^1 4f^14 6p^6 7s^2. The first ionization energy involves removing an electron from the outermost energy level, which is the 6s orbital. Therefore, the correct electronic equation for the first ionization energy of barium is [Xe]6s^2 → [Xe]6s^1 + e^-, which is represented by choice C.

Which of the Following Represents the Change in Electronic Configuration