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How would you account for the irregular ...

How would you account for the irregular variation of ionization enthalpies (first and second) in the first series of the transition elements ?

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Irregular variation of ionisation enthalpies is mainly attributed to varying degree of stability of different 3d-configurations (e.g., `d^(0),d^(5),d^(10)` are exceptionally stable).
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NCERT ENGLISH-THE D AND F BLOCK ELEMENTS-Exercise
  1. How would you account for the irregular variation of ionization enthal...

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  2. Write down the electronic configuration of: (i). Cr^(3+) (ii). Prn...

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  3. Why are Mn^(2+) compounds more stable than Fe^(2+) toward oxidation to...

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  4. Explain briefly how +2 state become more and stable in the first half ...

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  5. To what extent do the electronic configurations, decide the stability ...

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  6. What may be the stable oxidation state of the transition element with ...

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

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  8. What is lanthanoid contraction? What are the consequences of lanthanol...

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  9. What are the characteristics of th transition elements and why are the...

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  10. In What way is the electronic configuration of the transition elements...

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  11. What are the different oxidation states exhibited by the lanthanoids?

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  12. Explain gives reason. (a) Transition metal and many of their compoun...

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  13. What are interstitial compounds? Why are such compounds well known for...

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  14. How is the variability in oxidation states of transition metals differ...

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  15. Describe the preparation of potassium dichromate from iron chromite or...

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  16. Describe the oxidising action of potassium dichromate and write the io...

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  17. Describe the preparation of potassium permanganate. How does the acidi...

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  18. For (M^(2+))/(M) and (M^(3+))/(M^(2+)) systems the E^(ɵ) values for so...

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  19. Predict which of the followingwill be coloured in aqueous solution? T...

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  20. Compare the stability of +2 oxidation state for the elements of the fi...

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  21. Compare the chemistry of actinoids with that of the lanthanoids with s...

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