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JEE Mains · Chemistry · STD 11 - 3. Classification of elements and periodicity in properties

आयनों \(P ^{3-}, S ^{2-}, Ca ^{2+}, K ^{+}, Cl ^{-}\)के लिए आयनिक त्रिज्याओं का सही क्रम है 

  1. A \(\mathrm{P}^{3-}>\mathrm{S}^{2-}>\mathrm{Cl}^{-}>\mathrm{K}^{+}>\mathrm{Ca}^{2+}\)
  2. B \(\mathrm{Cl}^{-}>\mathrm{S}^{2-}>\mathrm{P}^{3-}>\mathrm{Ca}^{2+}>\mathrm{K}^{+}\)
  3. C \(\mathrm{P}^{3-}>\mathrm{S}^{2-}>\mathrm{Cl}^{-}>\mathrm{Ca}^{2+}>\mathrm{K}^{+}\)
  4. D \(\mathrm{K}^{+}>\mathrm{Ca}^{2+}>\mathrm{P}^{3-}>\mathrm{S}^{2-}>\mathrm{Cl}^{-}\)
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Answer & Solution

Correct Answer

(A) \(\mathrm{P}^{3-}>\mathrm{S}^{2-}>\mathrm{Cl}^{-}>\mathrm{K}^{+}>\mathrm{Ca}^{2+}\)

Step-by-step Solution

Detailed explanation

\(\mathrm{P}^{3-}>\mathrm{S}^{2-}>\mathrm{Cl}^{-}>\mathrm{K}^{+}>\mathrm{Ca}^{2+}\) (Correct order of ionic radii) all the given species are isoelectronic species. In isoelectronic species size increases with increase of negative charge and size decreases with increase in…
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