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प्रश्न
Account for the following:
Mn2+ is more stable than Fe2+ towards oxidation to +3 state.
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उत्तर
Electronic configuration of Mn2+ is [Ar]18 3d5 .
Electronic configuration of Fe2+ is [Ar]18 3d6 .
It is known that half-filled and fully-filled orbitals are more stable. Therefore, Mn in the +2 state has a stable d5 configuration. Therefore, Mn2+ shows resistance to oxidation to Mn3+. Also, Fe2+ has a 3d6 configuration and by losing one electron, its configuration changes to a more stable 3d5 configuration. Therefore, Fe2+ gets oxidised to Fe3+ easily.
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संबंधित प्रश्न
Write down the electronic configuration of Cr3+.
Write down the electronic configuration of Ce4+.
Write down the electronic configuration of Co2+.
Write down the electronic configuration of Th4+.
Name the elements of 3d transition series that show maximum number of oxidation states. Why does this happen?
Which among the following is not considered as a part of transition elements?
Which of the following compounds is expected to be colored?
Name the element of 3d series which exhibits the largest number of oxidation states. Give reason.
Give reason for the following statements:
Scandium (Z = 21) is a transition element but Zn (Z = 30) is not.
Define transition metals.
