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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 of `Si^+`

C

Catinic form

D

Anionic form

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The correct Answer is:
A, B
The given electronci configuration is for gorund state of `._(24)Cr` and of ` Ma^+`.
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P BAHADUR-ATOMIC STRUCTURE-Exercise 4
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  5. A gas absorbs a photon fo 355nm and emits at two wavelengths . If one...

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  7. A 3p-orbital has :

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  8. Which has maimum number fo unpaired elecron ?

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  9. For a d electron the orbital angular momentum is

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  10. The first use of quantum theory to explain the structure of atom was m...

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  11. The energy of an electron in the first Bohr orbit of H atom is -13.6 e...

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  12. The electrons, identified by quantum number n and l i. n = 4,l=1 ii....

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

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  15. Number fo nodal plane in px orbital is :

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  17. The quantum number + 1//2 and -1//2 for the electron spin represent

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  18. The radius of which of the following orbit is same as that of the firs...

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

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