Electronic configuration of four neutral atoms are given below.

Which of the following elements would not be paramagnetic

1s², 2s², 2p⁶

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1s², 2s², 2p¹

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1s², 2s², 2p⁵

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1s², 2s², 2p⁴

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Solution

The correct option is A
1s², 2s², 2p⁶

Paramagnetism is associated with number of unpaired electrons in the valence shell of an atom. As configuration a contains zero unpaired electrons, it would therefore not be paramagnetic

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