The correct order of ionic radii for Y 3- Eu 3- La 3- Lu 3-A- L a3-E u3-L u3-Y3- Y3-L u3-E u3-L a3- L u3-E u3-L a3-Y3-D- L u3-Y3-E u3-L a3-

The correct option is B Y belongs to 5^th period amp; La belongs to 6^th period. Ionic radii increases from Y^3+ to La^3+ down the group. Due to lanthano ...

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Standard IX

Chemistry

Size of Atoms and Ions

The correct o...

Question

The correct order of ionic radii for $Y^{3 +}, E u^{3 +}, L a^{3 +}, L u^{3 +}$

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Solution

The correct option is B
Y belongs to $5^{t h}$ period & La belongs to $6^{t h}$ period. Ionic radii increases from $Y^{3 +} t o L a^{3 +}$ down the group. Due to lanthanoid contraction, ionic radii follows the order
$L u^{3 +} < E u^{3 +} < L a^{3 +}$

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Similar questions

Q. The correct order of ionic radii of

Y^{3 +}, {L a}^{3 +}, {E u}^{3 +}

and

{L u}^{3 +}

is:

The correct order of ionic radius for $Y^{3 +}, L a^{3 +}, E u^{3 +}$ and $L u^{3 +}$ is:

Q. The correct order of ionic radii of

Y^{3 +}, L a^{3 +}, E u^{3 +}

and

L u^{3 +}

is:
(Atomic number of Y=39, La=57, Eu=63, Lu=71)

Q. The correct increasing order of ionic radii of the following

C e^{3 +}, L a^{3 +}, P m^{3 +}

and

Y b^{3 +}

is:

Q. The correct order of ionic radii of

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and

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in its

+ 3

oxidation state is:

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The correct order of ionic radii for Y3+, Eu3+, La3+, Lu3+

The correct option is B Y belongs to 5th period & La belongs to 6th period. Ionic radii increases from Y3+ to La3+ down the group. Due to lanthanoid contraction, ionic radii follows the order Lu3+<Eu3+<La3+

The correct order of ionic radii for $Y^{3 +}, E u^{3 +}, L a^{3 +}, L u^{3 +}$

The correct option is B
Y belongs to $5^{t h}$ period & La belongs to $6^{t h}$ period. Ionic radii increases from $Y^{3 +} t o L a^{3 +}$ down the group. Due to lanthanoid contraction, ionic radii follows the order
$L u^{3 +} < E u^{3 +} < L a^{3 +}$