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Which of the following electronic config...

Which of the following electronic configuration is not possible? 

A

`1s^(2)2s^(2)2p^(6)`

B

`1s^(2)2s^(2)2p^(7)`

C

`1s^(2)2s^(2)`

D

`1s^(2)2s^(2)2p^(5)`

Text Solution

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The correct Answer is:
B
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AAKASH SERIES-ATOMIC STRUCTURE-OBJECTIVE EXERCISE - 2
  1. In the ground state, an element has 13 electrons in its "M - shell". T...

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  2. In which of the following Aufbau principle is violated?

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  3. Which of the following electronic configuration is not possible?

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

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  5. Which of the following has maximum unpaired d-electrons?

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  6. Given this set of quantum numbers for a multi electron atom 2, 0, 0, a...

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  7. Which of the following isolated gaseous atoms has highest net electron...

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  8. If the Nitrogen atom had electronic configura - tion 1s^(7), it would ...

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  9. Which one of the following sets of quantum numbers is not possible for...

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  10. According to aufbau principle, the correct order of energy of 3d, 4s a...

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  11. The electrons identified by quantum numbers n and I (i) n = 4,l = 1 ...

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  12. Which of the following sets of quantum numbers is correct for an elect...

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  13. Which one of the following represents an impossible arrangement of ele...

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

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  15. The number of unpaired electrons present in palladium (Z = 46) atom is

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  16. The incorrect electronic arrangment is

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  17. Which of the following has non-spherical sub shell of electron ?

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  18. Which of the following is violation of Pauli's exclusion principle ?

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  19. What are the total number of orbitals and electrons for m = 0, if ther...

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  20. Which one of the following sets of ions have same outer shell electron...

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