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Periodic Classification of Elements — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10SciencePeriodic Classification of Elements2 Marks
Question
What is the fundamental difference in the electronic configurations between the group 1 and group 2 elements?
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Answer

The fundamental difference between the electronic configuration of group 1 and group 2 elements is that group 1 elements have 1 valence electron in their atoms whereas group 2 elements have 2 valence electrons in their atoms.

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