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Question

________ needs three electrons to attain the nearest noble gas configuration.

A
Oxygen
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B
Silicon
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C
Helium
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D
Nitrogen
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Solution

The correct option is D Nitrogen

The electronic configuration of nitrogen is 2,5. Nitrogen has only five electrons in the outermost shell. So, it needs three electrons to attain the nearest noble gas configuration.

For example, nitrogen atom shares three electrons with another nitrogen atom forming a triple bond. The image shows a triple bond being formed:


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