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Which of the following pairs of elements...

Which of the following pairs of elements would you expect to have lower first ionization enthalpy ? (a) Cl or F , (b) Cl or S , (c) K or Ar , (d)Kr or Xe.

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NCERT TAMIL-PERIODIC CLASSIFICATION-I-Questions (Explain briefly the following)
  1. Why does the first ionization enthalpy would have higher electron gain...

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  2. Which of the following pairs of elements would have more negative elec...

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  3. Lanthanides and actinides are placed in separate rows at the bottom of...

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  4. What do you mean by representative elements? Name the groups of the pe...

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  5. Name any two transition elements and any two inner transition elements...

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  6. Which of the following pairs of elements would you expect to have lowe...

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  7. Enlist the simularities between lithium and magnesium.

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  8. What do you mean by the term electron gain enthalpy? How does electron...

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  9. Explain how the elements are arranged in the form of the periodic tabl...

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  10. What are normal, transition and inner- transition elements?

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  11. What are the differences between normal and transition elements?

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  12. Anionic radius is higher than the corresponding neutral atom. Give rea...

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  13. Explain the size of group Cl^(-1) gt Na^(+) .

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  14. What is meant by electronegativity? On what factors does it depend?

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  15. Justify the position of lanthanides and actinides in the periodic...

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  16. Define the term Ionic Radii.

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  17. What do you mean by ionization enthalpy? How does it vary across a per...

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  18. What is meant by dielectric ?

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  19. What are the demerties of long form periodic table.

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