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Gadolinium belongs to 4f series. Its ato...

Gadolinium belongs to 4f series. Its atomic number is 64. Which of the following is the correct electronic configuration of gadolinium

A

`[Xe]4f^(9)5s^(1)`

B

`[Xe]4f^(7)5d^(1)6s^(2)`

C

`[Xe]4f^(3)5d^(5)6s^(2)`

D

`[Xe]4f^8 6d^2`

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-D-BLOCK ELEMENTS-OBJECTIVE EXERCISE-3 (PREVIOUS NEET/AIPMT QUESTIONS)
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  5. Which of the following does not give oxygen on heating?

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  9. Magnetic moment 2.83 BM is given by which of the following ions ?

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  10. Reason of lanthanodi contraction is

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  11. Magnetic moment 2.84B.M. is given by (Atomic number, Ni = 28, Ti = 22,...

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  12. Which of the following processes does not involve oxidation of iron ?

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  13. Because of lanthanoid contraction, which of the folliwng pairs of elem...

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  14. Assuming complete ionisation, same moles of which of the following com...

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  15. Gadolinium belongs to 4f series. Its atomic number is 64. Which of the...

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  16. The electronic configurations of Eu (Atomic No. 63), Gd (Atomic No. 64...

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  17. Which one of the following statements related to lanthanons is incorre...

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  18. The reason for greater range of oxidation states in actinoids is attri...

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  19. Match the metal ions given in Column I with the spin magnetic moments ...

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  20. Which one of the following ions exhibits d-d tranistion and paramagnet...

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