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On moving from left to right in a period...

On moving from left to right in a period in the periodic table, the size of the atom.

A

increases

B

decreases

C

does not change appreciably

D

first decreases and then increases

Text Solution

Verified by Experts

The correct Answer is:
B
Explanation : As we move from left to right in the period of periodic table, the number of shell remains same but atomic number increases. So the electronic attraction over valence electrons also increases that decreases the atomic radius.
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OSWAL PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS -NCERT EXEMPLAR (MULTIPLE CHOICE QUESTIONS)
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  2. Where would you locate the element with electronic configuration 2, 8 ...

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  5. Which one of the following elements exhibit maximum number of valence ...

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  6. Which of the following gives the correct increasing order of the atomi...

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  7. Which among the following elements has the largest atomic radii ?

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  8. Which of the following elements would lose an electron easily ?

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  9. Which of the following elements does not lose an electron easily ?

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  10. Which of the following are the characteristics of isotopes of an eleme...

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  11. Arrange the following elements in the order of their decreasing metall...

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  12. Arrange the following elements in the order of their increasing non-me...

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  13. What type of oxide would Eka- aluminium form?

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  14. Three elements B, Si and Ge are

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  15. Which of the following elements will form an acidic oxide ?

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  16. The element with atomic number 14 is hard and forms acidic oxide and a...

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  17. Which one of the following depict the correct representation of atomic...

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  18. Which one of the following does not increase while moving down the gro...

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  19. On moving from left to right in a period in the periodic table, the si...

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  20. Which of the following set of elements is written in order of their in...

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