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Classification of Elements and Periodicity in Properties — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistryClassification of Elements and Periodicity in Properties1 Mark
Question
The element with ns2, np5 configuration is non-metal or metal? Why?
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Answer

It is non-metal because it has 7 valence electrons. It can gain one electron to become stable.

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