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The electronic configuration of an eleme...

The electronic configuration of an element is `1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(5)4s^(1)` .This represents its

A

excited state

B

ground state

C

cationic form

D

anionic from

Text Solution

Verified by Experts

The correct Answer is:
B
(b) `3 d^5 4 s^1` system is more stable than `3 d^4 4 s^2`, hence former is the ground state configuration.
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A2Z-ATOMIC STRUCTURE-Quantum Numbers, Orbitial'S Shape, Electronic Configuration
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  2. The number of nodal planes in a px orbital is.

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  3. The electronic configuration of an element is 1s^(2)2s^(2)2p^(6)3s^(2)...

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  4. The number of d-electrons retained in Fe^(2+) ion is :

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  5. The orbital angular momentum for an electron revolving in an orbit ...

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  6. Which is the correct order of probability of being found close to the ...

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  7. The mangnitue of spin angular momentum of electron is givenby :

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  8. If nitrogen atoms had el,ectonic configuration is ? It would have en...

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  9. In which of the following case would be probability of finding an elec...

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  10. Which set is correct for an electron in 4f -orbitial ?

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  11. Which set of quantum number is not consistent with the quatum mechanic...

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  12. + and - sign of the lobes of py orbital represents.

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  13. The maximum number of electrons present in an orbit. l = 3, is .

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  14. In a malti-electrons atom which of the following orbitals deseribed...

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  15. Which of the following set of quantum number belongs to highest energy...

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

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  17. Which of the following statement is correct in relation to the hydroge...

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  18. If the quantum number l has a value of 2 what are the permitted valu...

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  19. Which electronic configuration is not observing the (n + l) rule.

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  20. The number of radial nodes of 3s and 2p orbital are, respectively

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