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Which of the following pair of atomic nu...

Which of the following pair of atomic numbers represents s-block element ?

A

7, 15

B

6, 12

C

9, 17

D

3, 12

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The correct Answer is:
D
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NARAYNA-CLASSIFICATION OF ELEMENTS AND PERIODICITY -C.U.Q
  1. The atomicity of noble gases is

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  2. The element with atomic numbers 19 is

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  3. Which of the following pair of atomic numbers represents s-block eleme...

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  4. The element with electron configuration 1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)...

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  5. The element with ns^(2)np^(4) as outer electron configuration is a

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  6. If the differentiating electron enters (n-1) d-sublevel. The element i...

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  7. Atoms with three of their outer most orbits incompletety filled with e...

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  8. The name of the element with atomic number 100 was adopted in honour o...

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  9. Inner transition elements exhibit different coloured compounds on acco...

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  10. The total numbers of elements in the Group 11 is

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  11. The atomic numbers of elements of second transition series lie in the ...

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  12. Atomic number of next inert gas to be discovered will be

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  13. The element with atomic number 12 belongs to.........Group and...........

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  14. Elements which generally exhibit multiple oxidation states and whose i...

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  15. Ce-58 is a member of

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  16. The outer most orbit of an element "X" is partially filled with electr...

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  17. Which is the atomic number of another element present in the same grou...

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  18. Which statement is incorrect for the d-block elements A)Have atomic ra...

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  19. When a neutral atom is converted to the anion its

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  20. The term periodicity in the properties of element are arranged in the ...

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