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How many periods and vertical columns ar...

How many periods and vertical columns are there in the long form of the periodic table?

A

8,12

B

6,8

C

7,18

D

6,18

Text Solution

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The correct Answer is:
C
7,18
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Explore conceptually related problems

Who developed the long form of periodic table?

(a) What is meant by (i) a group and (ii) a period in a periodic table? (b) How many periods and groups are there in the long form periodic table? (c) Give two examples each of (i) group 1 elements (ii) group 17 elements (iii) group 18 elements.

How many vertical columns are there in the periodic table ?

What is the basis of long form of periodic table?

There are seven periods in the long form of the periodic table.

PHYSICS WALLAH-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -LEVEL-2
  1. According to modern periodic law the elements with similar chemical an...

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  2. How many periods and vertical columns are there in the long form of t...

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  3. Which of the following pairs of atomic numbers represents elements bel...

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  4. In the general electronic configuration : (n-2)f^(1-14) (n-1)d^(0-1)...

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  5. The atomic numbers of the metallic and non-metallic elements which are...

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  6. The atom larger in size as compared to oxygen is:

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  7. Which of the following order of radii is correct?

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  8. Which electronic configuration of neutral atoms of the highest first i...

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  9. Which of the following isoelectronic ion has the high ionization energ...

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  10. The first ionization energy of O is less because :

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  11. Which of the following is the correct order of ionisation energy? (1...

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  12. Which of the following is not a Dobereiner triad?

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  13. An element with atomic number 106 has been discovered recently. Which ...

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  14. Increasing order of electronegativity is

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  15. From which of the following species in gaseous state it is easiest to ...

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  16. The order of basic character of given oxides is:

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  17. As one moves down the group from top to bottom then which of the follo...

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  18. The first ionisation potential of AI is smaller than that of Mg becaus...

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  19. Fluorine has the highest electronegativity among the ns^(2) np^(5) gro...

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  20. The element having very high ionization enthalpy but zero electron af...

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