1.

Arrange the following according to decreasing atomic size of an element that is .. K,Na ,Mg .

Answer»

TE !!!HOPE THIS HELPS YOU...We know that as the cationic CHARGE increase the apsize of the ION decrease,then Mg will have SMALLEST SIZE.Since K has more electrons compared to Na the size of K will be large due to PRESENCE of additional orbitals.So ,the ascending order is,Mg < Na < KTHANK YOU FOR THE WONDERFUL QUESTION...#bebrainly



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