Periodic trends questions

1. (a) Explain why the atomic radius of sodium (Z = 11) is bigger than the atomic radius of chlorine (Z = 17).(b) Explain why the atomic radius of the elements increases upon descending group 17 (F → I).2. Suggest how the values for the atomic radii of the noble gases given in Section 9 in the IB Chemistry data booklet have been obtained.3. Suggest two reasons why the ionic radius of a sodium ion is much smaller than...

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