Yes, it is.
If we look at the electronic configuration of Mn2+ , it is 1s2 2s2 2p6 3s2 3p6 4s0 3d5 . The 3d orbital is half-filled, which is relatively stable. in Mn3+ , there are only 4 electrons in the 3d orbital, which is less stable.
Oxidant half reaction: MnO4- + 8 H+ + 5e- --> Mn2+ + 4 H2O
The compound Mn2(SO3)3 is called manganese(III)sulphite.
manganese is a 3d element. +2 is the oxidation number in this ion.
The oxidation number of Mn in the molecule Mn2 would be 0.
Mn2(SO4)3
Mn: 1s22s22p63s23p63d54s2 Mn2+: 1s22s22p63s23p63d5
Oxidant half reaction: MnO4- + 8 H+ + 5e- --> Mn2+ + 4 H2O
The color of Mn2+ ion in estimation of iron 2 permanganometry is purple.
Mn has 25 protons.
The compound Mn2(SO3)3 is called manganese(III)sulphite.
manganese is a 3d element. +2 is the oxidation number in this ion.
The oxidation number of Mn in the molecule Mn2 would be 0.
8H+ + MnO4- + 5Fe2+--> 5Fe3+ + Mn2+ + 4H20
Manganese Sulphate
Mn2(SO4)3
Mn2(SO4)3
Mn (CO3)2 numbers must be in subscript.