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The long form of periodic table has...

The long form of periodic table has

A

seven horizontal rows and eithteen vertical columns

B

ten horizontal rows and eighteen vertical columns

C

eighteen horizontal rows and seven vertical columns

D

eighteen horizontal rows and ten vertical columns.

Text Solution

Verified by Experts

The correct Answer is:
A
There are seven periods and eighteen groups in the long form of the periodic table.
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OMEGA PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-Multiple Choice Questions (MCQs)
  1. In the modern periodic table elements are arranged in order of

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  2. The modern periodic table known as the long form of periodic table was...

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  3. The long form of periodic table has

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  4. Fill in the blanks: The elements of group 17 are called…........

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  5. Alkaline earth metals belong to

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  6. Which of the following represents the electronic configuration of d-bl...

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  7. Explain why transition elements have high melting and boiling points ?

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  8. Which among the following will have largest size ?

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  9. Which of the following is/are correct?

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  10. The energy required to remove an electron from a gaseous atom from its...

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  11. In a period from Li to F ionisation enthalpy

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  12. Given the correct order of electronegativity of central atom in follow...

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  13. The electronegativities of F and H are 4.0 and 2.1 respectively. The p...

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  14. Which of the following element has maximum electron gain enthapy(neg...

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  15. The main source of energy is ….. .

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  16. The 3rd period of the periodic table contains

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  17. Which of the elements show least values of ionisation energies within ...

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  18. r("van der Waal") is

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  19. Which of the following does not have any unit?

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  20. The size of following species increases in the order

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