Questions


November 2022 1 3 Report
6. Which electron configuration of element is incorrect?

A. B⁵: 1s², 2s², 2p²

C. Na¹¹: 1s² 2s² 2p⁶ 3s¹

B. CI¹⁷: 1s² 2s² 2p⁶ 3s² 3p⁵

D. Ne¹⁰: 1s² 2s² 2p⁶

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