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Which of the following relation is corre...

Which of the following relation is correct with respect first (I) and second (II) ionisation of sodium and magnesium?

A

`I_(mg)=II_(Na)`

B

`I_(Na)gtI_(Mg)`

C

`II_(Mg)gtII_(Na)`

D

`II_(Na)gtII_(Mg)`

Text Solution

Verified by Experts

The correct Answer is:
A
Due to the large size of group `IA` elements, the outermost electron is far from the nucleus and can easily be removed. Their ionisation eneries or ionisation potentials are relatively low.
Ionisation potential `(eV) = {:(Li,Na,K,Rb,Cs),(5.4,5.1,4.3,4.2,3.9):}`.
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A2Z-CLASSIFICATION OF ELEMENTS AND PERIODICITY OF PROPERTIES-Ionisation Energy
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  2. Which of the following transitions involves maximum amount of energy?

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  3. A rarr A^(+)+e,E(1) and A^(+) rarr A^(2+)+e,E(2). The energy required ...

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  4. Which of the following relation is correct with respect first (I) and ...

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  5. How many ionisation energies can carbon have?

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  6. The correct sequence of elements in decreasing order first ionisation ...

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  7. The first ionisation potentials (eV) of Be and B respectively are

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  8. the highest ionisation energy stands for

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  9. which of the following has the least ionisation potential?

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  10. The first ionisation potential will be maximum for

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  11. The second ionisation potential is

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  12. Which one of the following elements has the highest ionisation energy?

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  13. What will be the order of first ionisation energy?

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  14. In which of the following process highest energy is absorbed?

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  15. The increasing order of the first ionisation enthalpies of the element...

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  16. Which of the following explanation is best for not placing hydrogen in...

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  17. Which of the following represents the correct order of increasing firs...

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  18. The first ionisation potential of Na is 5.1eV. The value of electrons ...

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  19. The correct sequence which shows decreasing order of the ionic radii o...

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  20. The set representing the correct order of ionic radius is

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