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Which of the following do not represent ...

Which of the following do not represent ground state electronic configuration of an atom ?

A

`1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(8)4s^(2)`

B

`1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(9)4s^(2)`

C

`1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(10)4s^(1)`

D

`1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(5)4s^(1)`

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-ATOMIC STRUCTURE-Level - I (EAMCET) (Exercise - VI (Miscellaneous))
  1. An atom has a mass number of 23 and atomic number 11. The number of pr...

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  2. The mass of the atom is determined by .

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  3. The K, L and M shells of an atom are full. Its atomic number is .

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  4. Cathode rays are deflected towards.

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  5. The proton is heavier than an electron by .

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  6. Carbon-12 atoms has .

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  7. Chadwick got the Nobel Prize for the discovery of .

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  8. The volume of the nucleus of an atom when compared to the extra nuclea...

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  9. The correct set of four quantum numbers for the valence electron of ru...

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  10. Maximum number of electrons in a subshell wih l=3 and n=4 is

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  11. Which of the following do not represent ground state electronic config...

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  12. Which of the following statements about electrons is incorrect ?

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  13. The number of radial nodes for a 3p orbital is

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  14. Number of angular nodes for a 4d orbital is .

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  15. Which of the following is responsible to rule out the existence of def...

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  16. Total number of orbitals associated with third shel would be

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  17. When 6d orbital is complete, the entering electron goes into

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  18. Neutron is a fundamental particle which carries ?

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  19. Most penetrating radiation of radioactive element is :

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  20. The maximum number of electrons that can be accomodated by p - orbital...

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