Chemistry · Periodic Classification and Periodic Properties
The correct order of increasing atomic/ionic size for the species Mg2+, Na+, F-, and Al is:
- 1F- < Na+ < Mg2+ < Al
- 2Na+ < Al < Mg2+ < F-
- 3Mg2+ < Na+ < F- < Al✓
- 4Na+ < Al < F- < Mg2+
Correct answer
Mg2+ < Na+ < F- < Al
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