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Because of lanthnoid contraction, which ...

Because of lanthnoid contraction, which of the following pairs of elements have nearly same atomic radii ? (Number in the parenthesis are atomic numbers)

A

`Zr(40)` and `Nb(41)`

B

`Zr(40)` and `Hf(72)`

C

`Zr(40)` and `Ta(73)`

D

`Ti(22)` and `Zr(40)`

Text Solution

Verified by Experts

The correct Answer is:
B
`Zr(40)` and `Hf(72)` will have same atomic since because of lanthanoid contraction and poor shielding effect.
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Knowledge Check

  • Because of lanthanoid contraction, which of the following pairs of elements have nearly same atomic radii ? (Number in the parenthesis are atomic numbers)

    A
    `Zr(40)` and `Nb(41)`
    B
    `Zr(40)` and `Hf(72)`
    C
    `Zr(40)` and `Ta(73)`
    D
    `Ti(22)` and `Zr(40)`

  • Because of lanthnoid contractoin, which of the following pairs of elements have nearly same atomic radii ? (Number in the parentrhesis are atomic numbers)

    A
    `Zr (40)` and `Ta (73)`
    B
    `Ti (22)` and `Zr (40)`
    C
    `Zr (40` and `Nb (41)`
    D
    `Zr (40)` and `Hf (72)`

  • Because of lanthanoid contraction, which of the following pairs of elements have nealy same atomic radii? (Numbers in the parenthesis are atomic numbers)

    A
    Ti(22) and Zr(40)
    B
    Zr(40) and Nb(41)
    C
    Zr(40) and Hf(72)
    D
    Zr(40) and Ta(73)

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    Which of the following series of elements have nearly the same atomic radii

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