Question:
The highest oxidation state of manganese is?
The highest oxidation state of manganese is?
Updated On: Oct 10, 2024
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Solution and Explanation
The highest oxidation state of manganese is +7.
Manganese is a transition metal that can exhibit various oxidation states ranging from -3 to +7. The most common oxidation states of manganese are +2, +3, +4, +6, and +7. However, the +7 oxidation state is the highest oxidation state observed for manganese in chemical compounds.
An example of a compound in which manganese exhibits the +7 oxidation state is potassium permanganate (KMnO4).
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Concepts Used:
Properties of D Block Elements
- Multiple oxidation states- The oxidation states of d block elements show very few energy gaps; therefore, they exhibit many oxidation states. Also, the energy difference between s and d orbital is very less. Therefore both the electrons are involved in ionic and covalent bond formation, which ultimately leads to multiple oxidation states.
- Formation of complex compounds- Ligands show a binding behavior and can form so many stable complexes with the help of transition metals. This property is mainly due to:
- Availability of vacant d orbitals.
- Comparatively small sizes of metals.
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- Melting and boiling points- Melting and boiling points of transition are very high because of the presence of unpaired electrons and partially filled d orbitals. They form strong bonds and have high melting and boiling points.
- Atomic radii- The atomic and ionic radius of the transition elements decreases as we move from Group 3 to group 6. However, it remains the same between group 7 and group 10, and from group 11 to group 12 increases.
- Ionization enthalpy- The ionization enthalpies of the transition elements are generally on the greater side as compared to the S block elements