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====Ion Formation====
: [[Transition Metal]]s form [[Positive Ion|positive ions]] during [[Chemical Reaction|chemical reactions]].
: [[Transition Metal]]s can form several different [[Electrical Charge|charge]] [[ion]]s and these different [[Electrical Charge|charge]]s can determine the [[Physical Property|physical properties]] of the [[compound]]s they are in. Specifically this affects the [[colour]] of those [[compound]]s.In [[compound]]s the [[Electrical Charge|charge]] of the [[Transition Metal]] [[ion]] is given in [[Roman Numeral]]s after the name of the [[metal]]
*Copper (I) Sulphate: +1 [[Ion]] of [[Copper]] giving the [[compound]] a light green colour.
*Copper (II) Sulphate: +2 [[Ion]] of [[Copper]] giving the [[compound]] a blue colour.