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Why third ionisation enthalpy of Mn is v...

Why third ionisation enthalpy of Mn is very high?

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Assign a reason for each of the following: The third ionization enthalpy of Mn (Z = 25) is higher than that of either Cr (Z = 24) or Fe (Z = 26).

Give reasons: Why is first ionization enthalpy of Cu is higher than that of Na?

Why is third ionisation enthalpy of manganese exceptionally high?

Why is the third ionization energy of manganese (at no 25) unexpectedly high?

How would you account for irregular variation of 1st and 2nd ionisation enthalpies in the 1st series of transition elements?

Electron affinities of halogens are very high.

Which oxidation state of Mn is most stable and why?

R G PUBLICATION-THE d-AND f-BLOCK ELEMENTS-EXERCISE
  1. Give reasons: Why are Zn, Cd, and Hg normally not regarded as transiti...

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  2. Silver atom has complete filled d-orbitals (4d^(10)) in its ground sta...

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  3. Why third ionisation enthalpy of Mn is very high?

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  4. The variability of oxidation states of a transition element is differe...

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  5. Flourine is more electronegative than oxygen. Oxygen foms compound Mn2...

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  6. Between the couple Cr^(3+)//Cr^(2+) and Fe^(3+)//Fe^(2+) whose E value...

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  7. Give the reason for negative E^@ value for Ni^(2+)//Ni.

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  8. What is 'spin only' formula?

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  9. The observed magnetic moment of a transition melal ion is 5.96 BM. Cac...

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  10. Copper (I) and d^(10) configuration, while copper (II) has d^9 configu...

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  11. Draw the structure of Cr2O7^(2-) ion.

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  12. At room temperature why the reaction between oxalic acid and acidified...

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  13. Why La^(3+) ions are coloured?

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  14. Write the composition of mischmetal.

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  15. Write the composition of mischmetal.

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  16. What are inner transition elements.

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  17. What are coinage metals.

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  18. Explain the folloiwng phenomenon: Transition metals are much harder th...

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

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  20. How will you prepare: K2MnO4 from MnO2?

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