Home
Class 11
CHEMISTRY
Which of the following pairs of elements...

Which of the following pairs of elements have alomost similar atomic radii ?

A

`Zr, Hf`

B

`Cu, Ag`

C

`Sc, Ti`

D

`Pd, Pt`

Text Solution

Verified by Experts

The correct Answer is:
A
Due to consequence of lanthanide contraction
Size of `Zr =` size of `Hf`
Size of `Nb=` size of `Ta`
Size of `Mo=` size of `W`
Size of `Co=` size of `Ni` (due to imperfect screening effect of `3d` orbitals) `|{:("Group" .rArr,4,5,6,),("Period" rArr 5,Zr,Nb,Mo,),("Period" rArr 6,Hf,Ta,W,):}|`
Promotional Banner

Topper's Solved these Questions

  • PERIODIC CLASSIFICATION OF ELEMENTS AND GENERAL INORGANIC CHEMISTRY

    CENGAGE CHEMISTRY ENGLISH|Exercise Exercises (Single Correct) Ionisation Energy (Ie)|31 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS AND GENERAL INORGANIC CHEMISTRY

    CENGAGE CHEMISTRY ENGLISH|Exercise Exercises (Single Correct) Isoelectronic Species|4 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS AND GENERAL INORGANIC CHEMISTRY

    CENGAGE CHEMISTRY ENGLISH|Exercise Exercises (Singlecorrect) General Electronic Configuration And Periodicity|25 Videos

  • P-BLOCK GROUP 14 - CARBON FAMILY

    CENGAGE CHEMISTRY ENGLISH|Exercise Exercises Archives (Subjective)|9 Videos

  • PURIFICATION OF ORGANIC COMPOUNDS AND QUALITATIVE AND QUANTITATIVE ANALYSIS

    CENGAGE CHEMISTRY ENGLISH|Exercise Assertion Reasoning Type|5 Videos

Similar Questions

Explore conceptually related problems

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

Which of the following pair of elements have same atomic radius

Which of the following pairs of animals have almost similar maximum life span ?

Which of the following pairs of animals have almost similar maximum life span ?

Which of the following pairs of elements show similar set of oxidation state?

Which of the following set have almost similar atomic radii ?

Which of the following pairs does not have similar dimensions ?

Which of the following pairs of elements have same number of electrons in their outermost shell?

Which one of the following given d-block elements has the lowest atomic radii?

Which of the following pairs of elements would have more negative electron gain enthalpy.