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ATOMIC STRUCTURE
Question #25353
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Question
What is the electronic configuration of O²– ion?
A. 1s² 2s² 2p⁴
B. 1s² 2s² 2p⁵
C. 1s² 2s² 2p⁶
D. 1s² 2s² 2p⁶ 3s¹
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