Which, if any, is the ground-state electron configuration for Br^- A) [Kr] or 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰ B) [Kr] or 1s²2s²2p⁶3s²3p⁶4s²4p⁶ C) [Kr] or 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁴ D) [Kr] or 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶ E) None of the above

Question

Quizplus · Accepted Answer

The correct ground-state electron configuration for bromine (Br) is [Ar] 3d^10 4s^2 4p^5. Since the question seems to be asking for an electron configuration starting with [Kr], which is incorrect for bromine, and the configurations provided are garbled with placeholders, the closest match to what the actual electron configuration for bromine should be after [Ar] is option D, which correctly continues with 3d^10 4s^2 4p^5 after the [Kr] core, assuming a typo in the core notation.

Which, If Any, Is the Ground-State Electron Configuration for Br-

Which, If Any, Is the Ground-State Electron Configuration for Br^-