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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 Properties1 Mark
Question
Arrange $\mathrm{Ar}, \mathrm{K}^{+}, \mathrm{Ca}^{2+}$ in the increasing order of their atomic size.
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Answer

$\mathrm{Ca}^{2+}<\mathrm{K}^{+}<\mathrm{Ar} .$

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