oxidation state

• hoay

  12 Jan 18, 04:09

  iron (II) is written as Fe2+ or Fe+2.Is there a difference in this writting notation?

  Oxidation number or oxidation state are same terms. ? please explain.

• UltimaOnline

  12 Jan 18, 12:14

  Originally posted by hoay:

  iron (II) is written as Fe2+ or Fe+2.Is there a difference in this writting notation?

  Oxidation number or oxidation state are same terms. ? please explain.

  
  (II) refers to ON. (+2) refers to OS. At Uni levels, slight difference. For A level purposes, they are equivalent.

  2+ refers to dipositive ionic charge. So the dipositive Fe2+(aq) is an Fe(II) species.

  There is no such thing as Fe+2, and Cambridge will penalize for writing such nonsense.

  Example of such nonsense is seen in this '4x thumbs down' reply by 'Zhi Li', whose Chemistry Fail.

  https://sg.answers.yahoo.com/question/index?qid=20120621233431AAuIDMv