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Which of the following arrangements of e...

Which of the following arrangements of electron is mostly likely to the stable ?

A

``

B

C

D

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The correct Answer is:
C

`Cr` configuration `rarr 3d^(5)4s^(1)`
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NARAYNA-ATOMIC STRUCTURE-All Questions
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  2. Which of the following sets of quantum numbers is correct for an elect...

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  3. Which of the following arrangements of electron is mostly likely to th...

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  4. Aufbay principle fails to explain the configuration of element with at...

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  5. Total number of electron in any energy level is

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  7. n and l values of an orbital A and 3 are 2 and another orbital B are 5...

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  8. Number of unpaired electrons of neutral manganese atoma and its divale...

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  9. Which of the following electrons is most tightly bound by the nucleus

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  10. 1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(5) is not the electron configuration...

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  11. Which one of the following statements is correct?

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  12. Which of the following has maximum number of unpaired electrons?

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  13. The successive elements belonging to the 3d-series have the same numbe...

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  14. The electronic configuration in the valence shell of silicon is . The ...

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  15. In potassium, the order of energy levels is

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  16. Which has highest specific charge?

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  18. The mass number of three isotopes of an element are 11,12 and 13 .Th...

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  19. Boron has two istopes B^(10) & B^(11) whose relative abundances are 20...

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  20. If the wavelength of green light is about 5000A^(@), then the frequenc...

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