Which is the most non-metallic element among the following?

Chemistry · Class 11 · CBSE — Classification of Elements and Periodicity in Properties

1. 1s² 2s² 2p⁶ 3s¹
2. 1s² 2s² 2p⁵
3. 1s² 2s² 2p⁶ 3s²
4. 1s² 2s² 2p³

Answer

(B) 1 s 2 2 s 2 2 p 5

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