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(a) Deduce the number of 3d electrons...

(a) Deduce the number of 3d electrons in the folloing ions :
`Cu^(2+) , Sc^(+3)`

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To determine the number of 3d electrons in the ions Cu²⁺ and Sc³⁺, we will first find the electronic configurations of the neutral atoms and then adjust for the ions. ### Step 1: Determine the electronic configuration of Cu (Copper) - The atomic number of copper (Cu) is 29. - The electronic configuration of Cu is: - 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ ### Step 2: Determine the electronic configuration of Cu²⁺ ...
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CBSE COMPLEMENTARY MATERIAL-The d- AND f-BLOCK ELEMENTS-SHORT ANSWER-II TYPE QUESTION
  1. (a) Deduce the number of 3d electrons in the folloing ions : C...

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  2. (b) Why do transition metals form alloy ?

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  3. (c) Explain why Zn+2 salts are colorless or white ?

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  4. Complete and balance the following equations : (a) MnO(4)^(2-) + H^(...

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  5. Complete and balance the following equations : (b) KMnO(4) overset(...

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  6. Complete and balance the following equations : ( c) MnO(4)^(-) Fe...

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  7. Describe the oxidizing action of with the following. K(2) Cr(2) O(7)W...

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  8. Describe the oxidizing action of with the following. K(2) Cr(2) O(7)W...

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  9. Describe the oxidizing action of with the following. K(2) Cr(2) O(7)W...

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  10. Write any four differences between lanthanoids and actinoids. Lanth...

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  11. give reason for the following statement (a)separation of lanthanoid el...

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  12. (b) Transition metal exhibit higher enthalpies of atomization. Explain...

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  13. (c) Why do the transition metal have high enthalpy of hydration ?

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  14. (a) By using Hund’s rule derive the electronic configuration of Ce^(+3...

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  15. (b) Is lanthanum a f-block element ?

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  16. Account for the following : (a) Silver chloride dissolves in excess ...

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  17. Account for the following : (b) Cuprous chloride is diamagnetic whil...

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  18. Account for the following : In CrO(4)^(2-) ion , all the Cr-O bond...

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  19. The values in respect of electrodes of Cr, Mn and iron are : Cr^(+3...

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  20. Write any three properties of interstitial compounds.

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