Question

Make a chart on electronic configuration, valency, valence electrons of 1 - 20 elements with name formula and ions

Answer 1

Answer:

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Explanation:

ननम्नलऱखखत शब्द में अनुतवार अथवा अनुनालसक का चचg~u उचचत तथान ऩर ऱगाइए-

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