Why manganese exhibits the highest oxidation state of +7 among the #d-series of transition elements?
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this is due to electronic configuration of mn is 3d5,4s2 due to which it excites it's multiple electron to upper Orbit like 3d and these transition provide large no. of oxidation
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The maximum oxidation states of reasonable stability corresponds in value to the sum of s and 'd' electrons up to manganese . Total 7 electrons are present in 3d and 4s in Mn and hence it can exhibit maximum oxidation state of +7
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