What is the electronic configuration of O 2– ion?

Chemistry · Class 11 · CBSE — Structure of Atom

1. 1s² 2s² 2p⁶
2. 1s² 2s² 2p⁴
3. 1s² 2s² 2p⁵
4. 1s² 2s² 2p³

Answer

(A) 1 s 2 2 s 2 2 p 6

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