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Among the elements Li, K,Ca, S and Kr , ...

Among the elements Li, K,Ca, S and Kr , which one is expected to have the lowest first ionization enthalpy and which one has the highest first ionization enthalpy ?

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K has lowest first ionization enthalpy whereas Kr has highest first ionization enthalpy.
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SUBHASH PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES -TWO marks questions and answers
  1. Out of O and S which has higher negative electron gain enthalpy and wh...

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  2. Predict which atom in each of the following Period has the highest fir...

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  3. Among the elements Li, K,Ca, S and Kr , which one is expected to have ...

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  4. Among the elements of the third period Na to Ar pick out the element: ...

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  5. Among the elements of the third period Na to Ar pick out the element: ...

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  6. Among the elements of the third period Na to Ar pick out the element: ...

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  7. Among the elements of the third period Na to Ar pick out the element: ...

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  8. Name a species that will be isoelectronic with each of the following a...

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  9. Name a species that will be isoelectronic with each of the following a...

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  10. Name a species that will be isoelectronic with each of the following a...

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  11. Name a species that will be isoelectronic with each of the following a...

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  12. Arrange the following ions in the increasing order of their size: Be^(...

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  13. Explain law of octaves.

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  14. What ar the limitations of law of octaves.

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  15. Among B, Al , C and Si Which has the highest first ionization enth...

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  16. Among B, Al , C and Si which has the largest atomic radius.

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  17. Arrange the following elements in increasing order of non - metallic c...

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  18. Explain the variation of atomic radius down a group.

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  19. Explain the variation of atomic radius across a period.

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  20. Explain the variation of ionic radius down a group and across period.

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