Give the ground state electron configuration for the ion of Ba. A) [Kr]5s²5p⁶ B) [Kr]5s²4d¹⁰5p⁶6s²6p² C) [Kr]5s²4d¹⁰5p⁶6s¹ D) [Kr]5s²4d¹⁰5p⁶6s² E) [Kr]5s²4d¹⁰5p⁶

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Quizplus · Accepted Answer

The correct electron configuration for the Ba2+ ion is [Kr]5s^0 4d^10 5p^6, which corresponds to choice E. This configuration indicates that the Ba2+ ion has lost its two outermost electrons (which would have been in the 6s orbital), resulting in the configuration ending with the 5p^6 subshell.

Give the Ground State Electron Configuration for the Ion of Ba