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Z/e ratio for N^(3-),O^(2-)and F^(-) res...

Z/e ratio for `N^(3-),O^(2-)and F^(-)` respectively will be :

A

0.7, 0.8 and 0.9

B

0.9, 0.8 and 0.7

C

7, 8 and 9

D

9, 8 and 7

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The correct Answer is:
A
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MOTION-PERIODIC TABLE -Exercise - 1
  1. From the list given below, elements which belongs to the same group or...

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  2. The name ‘Rare earths’ is used for

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  3. Z/e ratio for N^(3-),O^(2-)and F^(-) respectively will be :

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  4. There are 10 neutrons in the nucleus of the element (Z)M^(19) . It bel...

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  5. The number of elements in 5th and 6th period of periodic table are res...

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  6. The number of elements known at that time when Mendeleev arranged them...

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

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

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

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

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

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

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

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

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  15. ""(92)^(238)U(IIIB) changes to ""(9)^(234) Th by emission of alpha- p...

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  16. The correct order of size would be:

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

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

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

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

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