Periodic Classification and Periodic Properties - Result Question 46

####43. Arrange the following ions in order of their increasing radii Li+,Mg2+,K+,Al3+.

(1997, 1M)

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Solution:

  1. Li+<Al3+<Mg2+<K+. Size decreases from left to right in a period and it increases from top to bottom in a group. Variation is more pronounced in group than in period.


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