Chemistry · Periodic Table and Periodicity
The correct decreasing order of ionic radii for the isoelectronic ions P3−, S2−, Ca2+, K+, and Cl− is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1K+ > Ca2+ > P3− > S2− > Cl−
- 2Cl− > S2− > P3− > Ca2+ > K+
- 3P3− > S2− > Cl− > Ca2+ > K+
- 4P3− > S2− > Cl− > K+ > Ca2+✓
Correct answer
P3− > S2− > Cl− > K+ > Ca2+
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