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  • Three elements X, Y, and Z are in the 3rd 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:Option: 1  Z < Y

Three elements X, Y, and Z are in the 3rd 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:
Option: 1  Z < Y < X
Option: 2  Y < X < Z  
Option: 3  X < Z < Y
Option: 4  X < Y < Z

Answers (1)

best_answer

As we move from left to right in a period, the acidic nature of oxide increases.
Thus, the correct order of atomic number is:
Z > Y > X

Therefore, Option(4) is correct.

Posted by

Kuldeep Maurya

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