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Why do zirconium and Hafnium exhibit sim...

Why do zirconium and Hafnium exhibit similar properties?

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Zr and HF exhibit similar properties due to lanthanoid contraction. Electrons present in f subshell have poor shielding due to which with the increasing atomic number or increasing effective nuclear charge size gets constricted Hence size of hafnium and zirconium becomes almost equal.
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SURA PUBLICATION-TRANSITION AND INNER TRANSITION ELEMENTS-Answer the Following Question
  1. What are interstitial compounds ?

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  2. Calculate the number of unpaired electrons in Ti^(3+) , Mn^(2+) a...

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  3. Write the electronic configuration of Ce^(4+) and Co^(2+)

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  4. Explain briefly how +2 states becomes more and more stable in t...

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  5. Which is more stables ? Fe^(3+) or Fe^(2+) - explain .

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  6. Explain the variation in E(m^(2+))^(0) //M 3d series .

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  7. Compare Lantanides and actinides.

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  8. Explain why Cr^(2+) strongly reducing while Mn^(3+) is strongly ...

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  9. Compare the ionization enthalpies of first series of the transition...

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  10. Actinod contraction is greater from element to element than the ...

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  11. Comparing La(OH)(3) and Lu(OH)(3), which is more basic and explain why...

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  12. Why Europium (ii) is more stable than Cerium (ii) ?

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  13. Why do zirconium and Hafnium exhibit similar properties?

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  14. Which is stronger reducing agent Cr^(2+) or Fe^(2+) ?

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  15. The E(M^(2+) //M)^(0) value for cpper is positive Suggest a possi...

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  16. Predic which of the following will coloured in aqueous solution ...

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  17. Desrible the variable oxidation state of 3d series elements .

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  18. Which metal in the 3d series exhibits +1 oxidation state most f...

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  19. Why first ionization enthalpy of chromium is lower than that of...

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  20. Transition metals show high melting points why ?

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