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As applied to periodic table, which of t...

As applied to periodic table, which of the following sets include only magic numbers

A

2, 8, 20, 28, 50, 82, 126

B

2, 8, 8, 18, 18, 32

C

2, 2, 8, 8, 18, 32

D

2, 8, 18, 18, 32, 32

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The correct Answer is:
B
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MOTION-PERIODIC TABLE -Exercise - 1
  1. The number of elements known at that time when Mendeleev arranged them...

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  2. Which of the following is/are Doeberiners triad (i) P, As, Sb " ...

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  3. As applied to periodic table, which of the following sets include only...

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  4. In the general electronic configuration : (n-2)f^(1-14) (n-1)d^(0-1)...

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  5. For Rb(Z = 37), points out the number of electrons present in L and N ...

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  6. Atomic number of Ag is 47. in the same group, the atomic number of ele...

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  7. Atomic number of 15, 33,51 represents the following family:

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

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

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  10. ""(92)^(238)U(IIIB) changes to ""(9)^(234) Th by emission of alpha- p...

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  11. The correct order of size would be:

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

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

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

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

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

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

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

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

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  20. Which of the following has largest radius :

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