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Actinoid contraction is greater from ele...

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

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Give reasons: What is lanthanoid contraction?

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Which is the last element in the series of the actinoids? Write the electronic configuration of this element. Comment on the possible oxidation state of this element.

ASSAM ACADEMIC CENTRE-The d and f-block elements-Example
  1. Which is a stronger reducing agents Cr^(2+) or Fe^(2+) and why?

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  2. Calculate the 'spin only' magnetic moment of M^(2+)(aq) ion (Z = 27).

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  3. Actinoid contraction is greater from element to element than lanthanoi...

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  4. Write down the electronic configuration of Cr^(3+)

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  5. Write down the electronic configuration of Pm^(3+)

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  6. Write down the electronic configuration of Cu^(+)

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  7. Write down the electronic configuration of Ce^(4+)

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  8. Write down the electronic configuration of Co^(2+)

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  9. Write down the electronic configuration of Lu^(2+)

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  10. Write down the electronic configuration of Mn^(2+)

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  11. Write down the electronic configuration of Th^(4+)

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  12. Account for the folloiwng: Mn^(2+) is more stable than Fe^(2+) towards...

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  13. Explain briefly how +2 state becomes more and more stable in the first...

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  14. Name the oxometal anions of the first series of the transition metals ...

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  15. Give reasons: What is lanthanoid contraction?

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  16. Write three general chracteristics of transition elements.

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  17. In what way is the electronic configuration of the transition elements...

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  18. What are lanthanoids?

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  19. How would you account for the following? Transition metals and many of...

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  20. How would you account for the following? The enthalpies of atomization...

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