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Which of the following has the largest a...

Which of the following has the largest atomic radius?

A

`Mg`

B

`Ca`

C

`Sr`

D

`Ba`

Text Solution

Verified by Experts

The correct Answer is:
D
On descending a group in the periodic table, the sizes of the atoms increase due to the effect of extra shells of electrons outweights the effect of increased nuclear charge on account of increasing shielding effect of inner eletrons. The order is `Mg lt Ca lt Sr lt Ba`.
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R SHARMA-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN ELEMENTS-Follow-up Test
  1. Which of the followinf has the smallest atomic radius?

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  2. Which of the following pairs of elements have similar atpmic radii?

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  3. Which of the following has the largest atomic radius?

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  4. Which of the following statements is not correct?

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  5. Which of the following has the smallest ionic radius?

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  6. Sizes of the seond and third row transition elements are almost the sa...

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  7. which of the following has largest radius ?

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  8. Which of the following species will have the largest size?

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  9. Which of the following is not correct?

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  10. Which of the following has the largest atomic radius?

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  11. For the transition elements, the variations in atomic radii are not so...

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  12. While dealing with multielectron atoms or ions, we must use the concep...

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  13. In SI system, the ionizarion enthalpy is measured in

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  14. Ionization enthalpies are

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  15. The first ionzation enthalpies generally increase form to right across...

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  16. The largest ionization enthalpies in any period occur for the

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  17. The values of ionzation enthalpies tend to increase within each period...

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  18. Ionization enthalpies tend to decrease going down any column of main g...

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  19. Ionizarion is not limited to the removal of a single electron from an ...

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  20. Which of the following elements has a large jump between its fourth an...

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