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Give an explanation for the following ob...

Give an explanation for the following observation : The gradual decrease in size (actinoid contraction) from element to element is greater among the actinoids than that among the lanthanoids (lanthanoid contraction).

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Does actinoids show actinoid contraction similar to lanthanoid contraction ?

Actinoid contraction is greater from element to element than lanthanoid contraction. Why?

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. What is the basic difference between the electronic configurations of ...

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  2. Why are f-block elements placed at the bottom of the periodic table ? ...

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  3. Give an explanation for the following observation : The gradual decrea...

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  4. Give an explanation for the following observation : The greatest numbe...

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  5. Write the iupac name of following : [Cr (NO2) 2(H2O)4 ]NO3

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  6. Explain the following observation : In general, the atomic radii of tr...

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  7. The E(M^(2+) // M)^@ for copper is positive (0.34 V). Copper is the on...

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  8. Account for the following : The E^@ value for the Mn^(3+)|Mn^(2+) coup...

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  9. Explain the following observation : Cu^+ ion is not known in aqueous s...

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  10. Explain the following observations : Although Co^(2+) ion appears to b...

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  11. Why E^(Theta) values for Mn, Ni and Zn are more negative than expected...

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  12. Write chemical reaction for preparation of K2Cr207 from chromite ore.

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  13. Give oxidation of KI by acidified K2Cr2O7 .

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  14. Write the iupac name of following : [Ni (H2O) 2 (NH3)4]SO4

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  15. What are lanthanoids ? Explain lanthanoid contraction.

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  16. Why transition elements show catalytic property? Give two examples of ...

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  17. How would you account for the following? The atomic radii of the metal...

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  18. Account for the following : The E^@ value for the Mn^(3+)|Mn^(2+) coup...

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  19. Why is the highest oxidation state of a metal exhibited in its oxide...

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  20. Explain the following observation : Cu^+ ion is not known in aqueous s...

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