WAEC SSCE - Chemistry - 1994 (Objective)

Question 1 Report

Which of the following electronic structures belongs to a noble gas?

1s²2s²

1s ²2s²2p⁴

1s²2s²2p⁶3s²3p⁶ Correct answer

1s²2s²2p²

1s²2s²2p ⁶3s²3p³

Answer Details

The electronic structure of a noble gas has a completely filled outermost shell. Among the options, only 1s²2s²2p⁶3s²3p⁶, has a completely filled outermost shell. This electronic configuration corresponds to the noble gas argon (Ar). Therefore, is the correct answer.






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