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The number of elements present in the fo...

The number of elements present in the fourth period is

A

32

B

18

C

8

D

2

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The correct Answer is:
B
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NARAYNA-PERIODIC TABLE -All Questions
  1. The plot of sqrt(v) vs Z is

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  2. The longest and shortest periods are

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  3. The number of elements present in the fourth period is

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  4. The general electronic configuration elements of carbon family

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  5. The straing element of fifth period is

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  6. Which of these does not reflect the periodicity of the elements.

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  7. The atomicity of noble gases is

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  8. The element with atomic numbers 19 is

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  9. Which pair of atomic numbers represent s-block elements?

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

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

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

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

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

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

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

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

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

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

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

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