Three elements X, Y and Z are in the 3 text 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:

Question

Three elements X, Y and Z are in the 3 text 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: (A) Z< Y< X (B) X< Z< Y (C) X< Y< Z (D) Y< X< Z

Tardigrade Admin · Accepted Answer

When we are moving from left to right in a periodic table acidic character of oxides increases (as well as atomic number of atom increases)

∴ X < Y < Z (acidic character)

X < Y < Z (atomic number)

Q. Three 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:

$Z < Y < X$

$X < Z < Y$

$X < Y < Z$

$Y < X < Z$

When we are moving from left to right in a periodic table acidic character of oxides increases (as well as atomic number of atom increases)

$∴ X < Y < Z (acidic character)$

$X < Y < Z (atomic number)$

Q. 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:

Z<Y<X

X<Z<Y

X<Y<Z

Y<X<Z