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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
Give general electronic configuration of least reactive group. Why are they least reactive?
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Answer

ns2 np6 is general electronic configuration of least reactive group because they have stable electronic configuration.

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