HARDMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryPeriodic PropertiesAchiever Section

Of the following orders of relative sizes, choose the incorrect order

A.Li < Na < K

B.Al3+< Mg2+ < Na+

C.C < Si < Al

D.Mg < Al < Na✓ Correct

Explanation

Since atomic radius decreases as we go from left to right in a period and increases as we go from top to bottom in a group of a periodic table.

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