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Fill in the blanks by picking the correct option there are_____groups and_______periods in the extended form of periodic table.The group,all members of which are in gaseous state under ordinary condition is_______group.Most electropositive elements belongs to_____group.

A

16,8.17,2

B

18.7,18,1

C

8,7,0,2

D

16,8,18,1

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The correct Answer is:
B
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NCERT FINGERTIPS-CLASSIFICATION OF ELEMENTS AND PERIODICITY -Electronic Configuration And Type Of Elements
  1. Match the atomic numbers given in column I with the block in which the...

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  2. Atomic numbers of few elements are given below which of the pairs belo...

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  3. Which of the following has the same number of electrons in its outermo...

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  4. An element has the electronic configuration 1s^(2)2s^(2)2p^(6)3s^(2)3p...

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  5. Fill in the blanks by picking the correct option there aregroups andpe...

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  6. Which block of the periodic table contains elements with the general e...

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  7. Examples of elements belonging to s,p,d or block are given below.Ident...

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  8. Electron configurations of few elements are given below,Mark the incor...

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  9. Few general names are given along with their valence shell configurati...

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  10. The electronic configuration of four elements are given below. Which e...

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  11. There are two rows of inner transition elements in the periodic table ...

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  12. Which of the following contains the maximum number of unpaired electro...

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  13. In the long form of periodic table all the non-metals are placed under

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  14. Part of the periodic table showing p-block is depicted below.What are ...

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  15. The electronic configuration for some neutral atoms are given below : ...

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  16. Match the column I,II and III and mark the appropriate choice.

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  17. Which of the following statements is not correct for the periodic clas...

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  18. Indicate the wrong statement on the basis of the periodic table.

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  19. Which is the most non-metallic elements amongs the following?

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  20. Which of the following groups contains metals.non-metals and metalliod...

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