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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^(5)`. The atomic number of element present just below the above element in periodic table is:

A

36

B

34

C

33

D

32

Text Solution

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The correct Answer is:
B
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MOTION-PERIODIC TABLE -Exercise - 1
  1. Atomic number of 15, 33,51 represents the following family:

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  2. The atom having the valence shell electronic configuration 4s^(2) 4p^2...

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

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  4. ""(92)^(238)U(IIIB) changes to ""(9)^(234) Th by emission of alpha- p...

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  5. The correct order of size would be:

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  6. The ionic radii of N^(3-), O^(2-) and F^(-) are respectively given by:

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  7. Match list-I with list-II and select the correct answer using the code...

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  8. The correct order of atomic size of C, N, P, S follows the order ?

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  9. In which of the following compounds, maganese shows maximum adius?

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  10. Arrange in the increasing order of atomic radii of the following eleme...

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  11. Which group of atoms have nearly same atomic radius.

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  12. In the ions P^(3-),S^(2-) and Cl, the increasing order of size is:

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  13. Atomic radil of fluorine and neon in Angstrom units are respectively ...

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  14. Which of the following has largest radius :

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  15. Arrange the following in increasing order of their atomic radius: Na, ...

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  16. Which of the following sequences is correct for decreasing order of io...

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  17. The order of size is :

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  18. Arrange the following in order of increasing atomic radii Na, Si, Al, ...

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  19. Consider the isoelectronic series , K^(o+), S^(2-), Cl^(ɵ), Ca^(2+), t...

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  20. Which of the following is not isoelectronic series?

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