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Set of continuos atomic number of elemen...

Set of continuos atomic number of elements are present in the same group as well as same period.

A

89,90,91,92

B

56,57,58,59

C

68,69,70,71

D

`101,102,103,104`

Text Solution

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The correct Answer is:
C
Er (68), Tm (69), Ub(70)and Lu (71) element are present in th same group as well as same period.
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A2Z-THE D AND F BLOCK ELEMENTS-Lanthanides And Actinides
  1. The f-block elements of the periodic table contains those element in w...

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  2. Set of continuos atomic number of elements are present in the same gro...

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  3. Across the lanthanide series, the basicity of the lanthanoid hydroxide...

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  4. The radius of La^(+) (at no 57) is 1.06Å. What may be the radius of Lu...

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  5. Misch metal is

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  6. + 4 ion of which has half-filled 4f subshell?

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  7. The main reason for larger number of oxidation state exhibited by the ...

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  8. An alloy of lanthanides

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  9. The lanthanide contraction is responsible for the fact that

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  10. Across the lanthanide series, the basicity of the lanthanoid hydroxide...

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  11. Lanthanides and actinides resemble in

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  12. Lanthanides contraction cause.

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  13. The speration of lanthanides by ion exchanges method is based on

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  14. The radiocative lanthanide is

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  15. Complete the following reaction

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  16. The pair of lanthanides with the highest third ionization energy is

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  17. All actinods have high desities except

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  18. Which one of the following is an electronic configuration of thorium?

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  19. Consider the following statement, (I) The size of the lanthanide M^(...

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  20. The actinoids exhibit, more member of oxidation states in general than...

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