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On the basis of chemical behavior, how m...

On the basis of chemical behavior, how many element belong to the `s-`block of the periodic table?

A

`13`

B

`15`

C

`14`

D

`12`

Text Solution

Verified by Experts

The correct Answer is:
D
`s`-block elements compries alkali metals (group `1`) and alkaline earth metals (group `2`). However, on the basis of valence shell configuration, `H (1s^(1))` and `He(2s^(2))` should be `s`-block elements.
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R SHARMA-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN ELEMENTS-Follow-up Test
  1. Which of the following groups of periodic table contains maximum numbe...

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  2. In s-block elements, the differentiating electron enters the orbital.

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  3. On the basis of chemical behavior, how many element belong to the s-bl...

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  4. A1though the elements in the periodic table are arranged according to ...

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  5. Which of the following elements is placed on its own in the table to i...

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  6. In p-block elements, theorbitals are successively filled.

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  7. The general valence shell electronic configuration of p-block elements...

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  8. How many elements belong to the p-block of the periodic table on the b...

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  9. For many years, the group 18(VIIIA) elements were called intert gases ...

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  10. p-block elements mostly fromcompounds.

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  11. Which of the groups of p-block contains the maximum number of metals?

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  12. Groups corresponding to the progressive filling of the ns and np orbit...

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  13. d-blcok elements are the elements in which the differentiating electro...

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  14. The general valence shell electronic configuration of transition eleme...

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  15. The transition metals are the elements in groups

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  16. Which of the d-block elements has zero electrons in the ns subshell?

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  17. f-block elements (sometimes called inner transition elements) are the ...

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  18. General valence shell electronic configuration of f-block elements is

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  19. In all there aref-block elements in the periodic table.

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  20. The lanthanoids and actinoids are sometimes called f-block transition ...

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