Chemistry · Periodic Classification of Elements
The correct decreasing order of ionic radii for the ions K+, Na+, Al3+, and Mg2+ is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Na+ < K+ < Mg2+ < Al3+
- 2Al3+ < Mg2+ < K+ < Na+
- 3Al3+ < Mg2+ < Na+ < K+✓
- 4K+ < Al3+ < Mg2+ < Na+
Correct answer
Al3+ < Mg2+ < Na+ < K+
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