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The electronic configuration of the elem...

The electronic configuration of the element which is just above the element with atomic number 43 in the same periodic group is

A

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

B

`1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(7)`

C

`1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(10)4s^(2)4p^(6)5s^(2)5p^(2)`

D

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

Text Solution

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The correct Answer is:
D
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MODERN PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-MULTIPLE CHOICE QUESTIONS (LEVEL -II)
  1. The electronic configuration of an element is 1s^(2)2s^(2)2p^(6)3s^(2)...

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  2. A sudden jump between second and third ionisation enthalpies of an ato...

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  3. The electronic configuration of the element which is just above the el...

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  4. The correct values of ionisation energies of Si, P, Cl and S are respe...

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  5. The element which has greastest difference between first and second io...

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  6. In a group of the periodic table, the elements possess:

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  7. The process requiring the absorption of energy is:

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  8. In the isoelectric species the ionic radii (Å) of N^(3-) O^(2-) and F^...

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  9. The correct order of negative electron gain enthalpy of the elements o...

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  10. In which of the following carbon has maximum electronegativity?

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  11. The recently discovered element Db (Z=105) belongs to

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  12. The correct order of 1st ionisation enthalpy among the following eleme...

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  13. The ions O^(2-), F^(-),Na^(+),Mg^(2+)and Al^(3+) are isoelectric. Thei...

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  14. Which of the following arrangement represents correct order of electro...

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  15. The correct order regarding the electronegativity of hybrid orbitals o...

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  16. Which which of the following electronic configuration an atom has the ...

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  17. Identify the correct order of size of the following

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  18. The correct order of ionisation enthalpy of C, N, O, F is

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  19. Consider the isoelectric species Na^(+), Mg^(2+), F^(-) and O^(2-). T...

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  20. The first ionisation enthalpies of Na, Mg, Al and Si are in the order:

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