WHY NICKEL WON'T REACT WITH IRON OXIDE ?

WHY NICKEL WON'T REACT WITH IRON OXIDE?  PLEASE GIVE REASON.  THANKS.
JohnSrinivassanAsked:
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chops_ukCommented:
i believe it's because iron is not displaced by the non reactive nickel. iron's already reacted with oxygen to form the oxide. take a look at a rectivity scale of solid state metals.

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BigRatCommented:
Look at the electropositivity of the metals involved.
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nanharbisonCommented:
your chemistry book should have a list of elements in order of reactivity, if one element is below another, it won't react, because it is less reactive.
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dhsindyRetired considering supplemental income.Commented:
If you look at the Periodic Table you will note that Nickel is to the right of Iron (by two squares) which makes Iron more electropositivity (like BigRat said).  This means that Iron gives up it's electrons easier than Nickel.  But, remember there maybe compounds of the same elements that are bonded differently and they may react differently.
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JohnSrinivassanAuthor Commented:
Hi
Thanks to everybody.
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