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OpenStudy (anonymous):
which element is more reactive: copper, iron or gold ?
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OpenStudy (anonymous):
i thought iron is more reactive than copper and gold...(?)
OpenStudy (anonymous):
yes you are right iron is more reactive
OpenStudy (abb0t):
In iron, the 3d orbital is incomplete, meaning the 4s electrons are not shielded completely. They experience a larger nuclear attraction.
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