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The valence orbital configuration of an ...

The valence orbital configuration of an element with atomic number 23 is

A

`3d^(5)`

B

`3d^(3), 4s^(2)`

C

`3d^(3), 4s^(1), 4p^(1)`

D

`3d^(2), 4s^(2), 4p^(1)`

Text Solution

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The correct Answer is:
B
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DINESH PUBLICATION-ATOMIC STRUCTURE-Revision Questions
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  2. Which one of the following shows the correct electronic configuration ...

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  4. The electronic configuration of 1s^(2) 2s^(2) 2p^(6) 3s^(2) 3p^(2) cor...

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  6. The number of netrons in the element Be is

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  7. When the azimuthal quantum number l = 1, the shape of the orbital will...

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  8. The spectrum of He is expected to be similar to that of

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  11. For the energy levels in an atom , which one of the following statem...

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  12. Subsidiary quantum number specifies

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  13. As we move away from nucleus, the energy of orbit

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  14. The spectrum of He is expected to be similar to that of

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  15. The maximum number of electrons in a subshell is given by the expressi...

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  18. Which of the following sets of quantum numbers is not possible?

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  19. The number of spherical nodes in 3p orbitals are

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