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Which of the following is not a represen...

Which of the following is not a representative element

A

Sodium

B

Boron

C

Calcium

D

Chromium

Text Solution

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The correct Answer is:
D
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NARAYNA-PERIODIC TABLE -All Questions
  1. Which of the following remains unchanged in descending in a group in t...

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  2. In a period, elements are arranged in strict sequence of

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  3. Which of the following is not a representative element

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  4. The inert gas present in the second long period is

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  5. Mono atomic element among the following is

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  6. Which one of the following pairs of atomic numbers, represents element...

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  7. The atomic number of elements of second inner transition elements lie ...

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  8. The atomic number of elements of first transition series lie in the ra...

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  9. In the long form of periodic all non-metals are placed in

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  10. All elements of the same group will have

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  11. The atomic number of an element is always equal to

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  12. Which of the following is not the electronic configuration of a repres...

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  13. Which of the following electronic configuration corresponds to an iner...

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  14. Which of the following electronic configuration in the outermost shell...

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  15. Lanthanum belongs to …. Block

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  16. Which pair of elements of atomic numbers given below will have similar...

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  17. The period that includes all blocks of elements is

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  18. Elements with atomic numbers 9, 17, 35, 53 are collectively known as

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  19. First transitional series is present in

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  20. In iron atom (z=26), the differentiating electron enters ….. Sublevel

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