The ionic radius of $_{57} L a^{3 +}$ is 1.06 A. Which one of the following given values will be closest to the ionic radius of $_{71} L u^{3 +} ?$

1.06 A

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1.56 A

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0.85 A

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1.35 A

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Solution

The correct option is C 0.85 A
As we move along a row radii decreases so ionic radius of Lu $^{3 +}$ should be smaller than that of La $^{3 +}$ because of lanthanide contraction across the period.

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Similar questions

Q. The radius of

L a^{3 +}

(atomic number = 57) is 1.06 A.Which one of the following given values will be closest to the radius of

L u^{3 +}

(atomic number = 71)?

The radius of $L a^{3 +}$ (At. No. of La = 57) is 1.06 A $^{0}$ . Which one of the following given values will be closest to the radius of $L u^{3 +}$ ?( Atomic number of Lu=71)

Q. The radius of

L a^{3 +}

(Atomic number of

L a = 57

) is

1.06 ˚ A

. Which one of the following given values will be closest to the radius of

L u^{3 +}

(Atomic number of

L u = 71

Q. The radius of

L a^{3 +}

(At.No. of La = 57) is 1.06A. Which one of the following given values will be closest to the radius of

L u^{3 +}

(At.No. of Lu = 71)

Which one of the following ions has the highest value of ionic radius

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The ionic radius of 57La3+ is 1.06 A. Which one of the following given values will be closest to the ionic radius of 71Lu3+?

The correct option is C 0.85 AAs we move along a row radii decreases so ionic radius of Lu3+ should be smaller than that of La3+ because of lanthanide contraction across the period.

The ionic radius of $_{57} L a^{3 +}$ is 1.06 A. Which one of the following given values will be closest to the ionic radius of $_{71} L u^{3 +} ?$

The correct option is C 0.85 A
As we move along a row radii decreases so ionic radius of Lu $^{3 +}$ should be smaller than that of La $^{3 +}$ because of lanthanide contraction across the period.