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To what extent do the electronic configurations decide the stability of oxidation states in the first series of the transition elements? Illustrate your answer with examples.

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In a transition series, the oxidation states which lead to exactly half-filled or completely d-orbitals are more stable. For example `Mn(Z=25)=3d^5(4)s^(2)` shows oxidation states `+2` to `+7` but `Mn^(2+)` is most stable because it has the configuration `3d^5`.
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The transition element ( with few exceptions ) show a large number of oxidation states . The various oxidation states are related to the electronic configuration of their atoms. The variable oxidation states of a transition metal is due to the involvement of (n-1)d and outer ns electrons . For the first five elements of 3d transition series , the minimum oxidation state is equal to the number of electrons in 4s shell and the maximum oxidation state is equal to the sum of 4s and 3d electrons. The relative stability of various oxidation states of a given element can be explained on the basis of stability of d^(0),d^(5) and d^(10) configuration . In 3d series, the maximum oxidation state is shown by

The transition element ( with few exceptions ) show a large number of oxidation states . The various oxidation states are related to the electronic configuration of their atoms. The variable oxidation states of a transition metal is due to the involvement of (n-1)d and outer ns electrons . For the first five elements of 3d transition series , the minimum oxidation state is equal to the number of electrons in 4s shell and the maximum oxidation state is equal to the sum of 4s and 3d electrons. The relative stability of various oxidation states of a given element can be explained on the basis of stability of d^(0),d^(5) and d^(10) configuration . In which of the following pairs , the first species is more stable than second one

The transition element ( with few exceptions ) show a large number of oxidation states . The various oxidation states are related to the electronic configuration of their atoms. The variable oxidation states of a transition metal is due to the involvement of (n-1)d and outer ns electrons . For the first five elements of 3d transition series , the minimum oxidation state is equal to the number of electrons in 4s shell and the maximum oxidation state is equal to the sum of 4s and 3d electrons. The relative stability of various oxidation states of a given element can be explained on the basis of stability of d^(0),d^(5) and d^(10) configuration . Identify the correct statement

What is the most common oxidation state of first transition series?

CENGAGE CHEMISTRY ENGLISH-APPENDIX INORGANIC VOLUME 2-Exercises
  1. Why are Mn^(2+) compounds more stable than Fe^(2+) towards oxidation t...

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  2. Explain briefly how +2 state becomes more and more stable in the first...

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  3. To what extent do the electronic configurations decide the stability o...

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

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

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  6. What is lanthanoid contraction ? What are the consequences of lanthano...

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

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  8. In what way is the electronic configuration of the transition elements...

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  9. What are different oxidation states exhibit by lanthanoids?

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  10. Explain giving reasons: (i) Transition metals and many of their compou...

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

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

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

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  14. Descibe the oxidising actions of potassium dichromate and write the io...

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  15. Describe the preparation of potassium permagnatite. How does the acidi...

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

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  17. Predict which of the following will be coloured in aqueous solution? T...

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

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

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  20. How would you account for the following : (i) Out of the d^(4) speci...

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