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Which of the following Lanthanoid is rad...

Which of the following Lanthanoid is radioactive

A

Cerium

B

Promethium

C

Thulium

D

Lutetium

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-D-BLOCK ELEMENTS-OBJECTIVE EXERCISE-1 (LANTHANIDES AND ACTINIDES)
  1. Highest oxidation state exhibited by an actinide element in its compou...

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  2. Actinide that is naturally available with highest isotopic number

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  3. Which of the following Lanthanoid is radioactive

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  4. Which of the following pair of ions have same outer electronic configu...

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  5. Which of the following is strong oxidant ?

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  6. Among the following correct basic strength order is i) La(OH)3 , ii)...

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  7. More number of oxidation states are exhibited by the actinoids than by...

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  8. An 'f' block element without any f electron is

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  9. Larger number of oxidation states are exhibited by the actinoids than ...

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  10. Incorrect statement among the following is

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  11. Among the following largest ion is

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  12. 4f^(14) configuratoin is observed in

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  13. Which element among the lanthanides has the smallest atomic radius

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  14. The electronic configuration of Gadolinium (At. No.64) is

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  15. Across the lanthanide series, the basic strength of the lanthanide hyd...

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  16. Most common oxidation states shown by cerium are

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  17. Which of the following statements is not correct

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  18. Arrange Ce^(3+),La^(3+),Pm^(3+), and Yb^(3+) in increasing order of th...

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  19. The basic character of the transition metal monoxides follows the orde...

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  20. Actinides have higher tendency to form complexes than Lanthanides, due...

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