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The correct order of ionic radius is-...

The correct order of ionic radius is-

A

`Ce gt Sm gt Tb gt Lu`

B

`Lu gt Tb gt Sm gt Ce`

C

`Tb gt Lu gt Sm gt Ce`

D

`Sm gt Tb gt Lu gt Ce`

Text Solution

Verified by Experts

The correct Answer is:
A
[Due to lanthanide contraction, left to right atomic size decreases.]
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Knowledge Check

  • The correct order of ionic radius of Yb ^(3+), La ^(3+) , Eu ^(3+), Lu ^(3+) is

    A
    `Yb lt Lu lt Eu lt La`
    B
    `La lt Eu lt Lu lt Yb `
    C
    `Lu lt Eu lt La lt Yb `
    D
    `Yb lt La lt Eu lt Lu `

  • The set representing the correct order of ionic radii is

    A
    `Na^(+) gt Li^+ gt Mg^(2+) gt Be^(2+)`
    B
    `Li^(+) gt Na^(+) gt Mg^(2+) gt Be^(2+)`
    C
    `Mg^(2+) gt Be^(2+) gt Li^(+) gt Na^(+)`
    D
    `Li^(+) gt Be^(2+) gt Na^(+) gt Mg^(2+)`

  • The set representing the correct order of ionic radii is

    A
    `Li^(+) gt Be^(2+) gt Na^(+) gt Mg^(2+)`
    B
    `Li^(+) gt Na^(+) gt Mg^(2+) gt Be^(2+) `
    C
    `Mg^(2+) gt Be^(2+) gt Li^(+) gt Na^+`
    D
    `Na^(+) gt Li^(+) gt Mg^(2+) gt Be^(2+)`

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    Choose the correct order of ionic radius for the following species.

    Choose the correct order of ionic radius for the following species.

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