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

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryClassification of Elements and Periodicity in Properties2 Marks
Question
Use the periodic table to answer the following questions.
Identify an element that would tend to gain two electrons.
✓

Answer

An element is likely to gain two electrons if it needs only two electrons to attain the stable noble gas configuration. Thus, the general electronic configuration of such an element should be $\mathrm{ns}^2 \mathrm{~np}^4$. This is the electronic configuration of the oxygen family.

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