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The maximum oxidation number is theoretically equal to the number of valence electrons. For example the oxidation number of chlorine among different compounds can vary from -1 to +7. An exception for this is fluorine, which only have -1 and 0 as its oxidation numbers.
You are asking about group 12. Generally they shows 14 as the oxidation number.
Hydrogen has -1 and +1 oxidation numbers. Other elements have +1 only
Group 1 elements have +1 oxidation number (except for hydrogen) All group 2 elements have +2 oxidation number Fluoride ion always has -1
K has an oxidation number of +1 O has an oxidation number of (-2) x 4 So... the oxidation number for Mn is whatever is needed to make 1-8 equal to zero. Therefore, the oxidation number for Mn is +7
-1 is most common, though oxidation number up to +7 are known (except for fluorine)
The maximum oxidation number is theoretically equal to the number of valence electrons. For example the oxidation number of chlorine among different compounds can vary from -1 to +7. An exception for this is fluorine, which only have -1 and 0 as its oxidation numbers.
You are asking about group 12. Generally they shows 14 as the oxidation number.
Hydrogen has -1 and +1 oxidation numbers. Other elements have +1 only
Group 1 elements have +1 oxidation number (except for hydrogen) All group 2 elements have +2 oxidation number Fluoride ion always has -1
K has an oxidation number of +1 O has an oxidation number of (-2) x 4 So... the oxidation number for Mn is whatever is needed to make 1-8 equal to zero. Therefore, the oxidation number for Mn is +7
MnCl2: oxidation number +2MnO2: oxidation number +4KMnO4: oxidation number +7
-1 only for F Other elements could have -1 to +7 depending on the compound
Oxidation number of chlorine is +7. oxidation number of O is -2.
+2 for group 2 elements
Group 18 or noble gases
The answer is 7