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
Select the correct option:
A
X < Z < Y
B
Y < X < Z
C
Z < Y < X
D
X < Y < Z
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
In periodic table in a period on moving from left to right as atomic number increases the nature of oxide follows the order basic, amphoteric and acidic i.e., oxide of X is basic, oxide of Y amphoteric oxide of Z is acidic
Hence atomic number follows the order
Z > Y > X
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