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Gadolinium belong to 4 f series (Z=64). ...

Gadolinium belong to 4 f series `(Z=64)`. Which of the following is its correct electronic configuration ?

A

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

B

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

C

`[Xe] 4 f^8 5d^1`

D

`[Xe]4 f^9 ds^1`

Text Solution

Verified by Experts

The correct Answer is:
A
Hint: `[Xe] 4 f^7 5d^1 6s^2`
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ACCURATE PUBLICATION-D & F BLOCK ELEMENTS -2 OR 5 MARKS QUESTIONS
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  3. What are the characteristics of the transition elements ?

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  4. In what way is the electronic configuration of transition elements dif...

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  5. Why is Copper considered as transition metal ?

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  9. Explain why TiCl3 is coloured but TiCl4 is colourless ?

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  10. Explain why [Ti (H2O)6]^(3+) is violet while [Ti (H2O)6]^(4+) is colou...

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