ChemistryEasy127×since 2002Q1634Three elements X, Y and Z are in the 3^rd period of the periodic table. The oxides of X, Y and Z, respectively, are basic, amphoteric and acidic. The correct order of the atomic numbers of X, Y and Z is :AX < Z < YBY < X < ZCZ < Y < XDX < Y < ZCheck answerSkip