Li2O,Na2O,K2O,Rb2O,Cs2O,Fr2O
LiOH,NaOH,KOH,RbOH,CsOH,FrOH
BeO,MgO,CaO,SrO,BaO,RaO
Be(OH)2,Mg(OH2),Ca(OH)2,Sr(OH)2,Ba(OH)2,Ra(OH)2
Li2O,Na2O,K2O,Rb2O,Cs2O,Fr2O
LiOH,NaOH,KOH,RbOH,CsOH,FrOH
BeO,MgO,CaO,SrO,BaO,RaO
Be(OH)2,Mg(OH2),Ca(OH)2,Sr(OH)2,Ba(OH)2,Ra(OH)2