Which of the Following Ions Does Not Match the Electronic

question 124

Multiple Choice

Which of the following ions does not match the electronic configuration 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶?

• A) Br^1-
• B) Sr²⁺
• C) As^3-
• D) Se²⁺

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