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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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It is due to poorer shielding of the nucleus by 5f lectrons in actinoids compared to 4felectrons of lanthanoids. Due to imperfect shielding of 5f electrons, the effective nuclear charge increases along the series causing contraction in size
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A N EXCEL PUBLICATION-D AND F - BLOCK ELEMENTS-QUESTION BANK
  1. Calculate the ‘spin only’ magnetic moment of M^(2+) (aq) ion (Atomic ...

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  2. Explain why Cu^+ ion is not stable in aqueous solution?

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

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  4. Transition elements are d- block elements Write any four characteristi...

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  5. Lanthanides and actinoids are f-block elements What is the common oxi...

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  6. Lanthanoids and actinoids are f-block elements Name the lanthanoid ha...

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  7. Lanthanoids and actinoids are f-block elements It is difficult to sep...

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  8. Transition metals are widely used as catalysts in industrial processes...

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  9. Transition metals are widely used as catalysts in industrial processes...

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  10. Transition metals are widely used as catalysts in industrial processes...

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  11. Atomic sizes generally increase as we come down a group of the periodi...

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  12. E^@ (standard electrode potential) values generally become less negati...

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  13. Transition elements are d-block elements, with some exceptions. Usuall...

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  14. Transition elements are d-block elements, with some exceptions. Usuall...

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  15. Which of the 3d series of elements exhibits the largest number of oxid...

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  16. Transition elements are d-block elements, with some exceptions. Usuall...

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  17. Describe the method of preparation of potassium dichromate from chromi...

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  18. Write any one consequence of lanthanoid contraction.

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  19. Transition elements are d- block elements Write any four characteristi...

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  20. Account for the following: Atomic radius decreases from left to right ...

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