Two elements A and B belong to group 1 and 2 respectively in the same period. Compare them with respect to their formulae of oxides
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Metal of group 1 have one valence electrons .Group 2 metals have two valence electron .Metallic character of group is high comparatively group 2 .Group 1 metals have big size than group 2 .R 20 for group 1 and Ro for group 2 .RCL2 for group 1 and RCL for group 2 .
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