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The electronic configuration of gadolini...

The electronic configuration of gadolinium (atomic number 64) is:

A

`[Xe]4 f^8 5d^9 6s^2`

B

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

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
B
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ERRORLESS -ATOMIC STRUCTURE-Quantum numbers , Electronic configuration and Shape of orbitals
  1. Maximum number of electrons in a sub-shell with l = 3 and n = 4 is.

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  2. The order of filling of electrons in the orbitals of an atom will be

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  3. The electronic configuration of gadolinium (atomic number 64) is:

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  4. If n = 6, the correct sequence for filling of electrons will be.

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  5. What is the maximum number of orbitals that can be identified with the...

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  6. Elements up to atomic number 103 have been synthesized and studied. If...

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  7. The statements. (i) In filling a group of orbitals of equal energy, ...

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  8. For the energy level is an atom which one of the following statement i...

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  9. The total number of orbitals in an energy level designated by principa...

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  10. The configuration 1s^(2) 2s^(2) 2p^(5) 3s^(1) shows

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  11. Which of the following explains the sequence of filling the electrons ...

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  12. Quantum number of an atom can be defined on the basis of

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  13. Which of the following has maximum energy ?

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  14. The quantum numbers 'm' of a free gaseous atom is associated with :

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  15. For principle quantum number n=4,the total number of orbitals having l...

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  16. Azimuthal quantum number defines.

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  17. The electronic configuration of copper (.29Cu) is

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  18. The quantum number which may be designated by s,p,d and f instead of n...

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  19. There is no difference between a 2 p and 3p orbital regarding ?

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  20. An electron has principal quantum number 3. The number of its (i) sub-...

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