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Chemistry Forums for Students => Physical Chemistry Forum => Topic started by: constant thinker on May 20, 2005, 10:06:39 PM

Title: Reactivity of metal
Post by: constant thinker on May 20, 2005, 10:06:39 PM
Why is that some Transition metals don't tarnish easily (like Au) but others tarnish fairly easly (Fe). All the transition metals have the same number of outer electrons.

My question is why do some metals tarnish faster than others?

Also this excludes I and III to keep it simple.

****This is referring to oxide layers forming.
Title: Re:Reactivity of metal
Post by: Garneck on May 21, 2005, 03:00:49 AM
Formation of an oxide on the surface of the metal?
Title: Re:Reactivity of metal
Post by: constant thinker on May 21, 2005, 08:53:33 PM
Yes, I am reffering to the formation of oxides. I should have made that clear in the beggining. Sorry for not making it clear.
Title: Re:Reactivity of metal
Post by: Garneck on May 22, 2005, 03:14:04 AM
Compare their half potentials.