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Class 11 NEET Chemistry Classification Of Elements And Periodicity In Properties
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Question : 23
Total: 51
Among the elements Ca, Mg, P and Cl, the order of increasing atomic radii is
(2010 March)
Mg < Ca < Cl < P
Cl < P < Mg < Ca
P < Cl < Ca < Mg
Ca < Mg < P < Cl
Validate
Solution:
The atomic radii decrease on moving from left to right in a period, thus order of sizes for Cl, P and Mg is Cl < P < Mg. Down the group size increases.
Thus overall order is : Cl < P < Mg < Ca
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