What is the electron configuration for an oxide ion,O₂-?
A) 1S₂ 2S₂ 2p4
B) 1S₂ 2S₂ 2p5
C) 1S₂ 2S₂ 2p6
D) 1S₂ 2S₂ 2p6 3s1
E) none of the above
Correct Answer:
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