What are the electronic features of the metals that make act as catalysts ?

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    $\begingroup$ Your question looks too broad, but see chemistry.stackexchange.com/questions/34145/… $\endgroup$ – Mithoron Jan 10 '16 at 16:45
  • $\begingroup$ The answer to the platinum/palladium question lacks the theoretical or conceptual perspective which I seek, it is only from a practical point of view. $\endgroup$ – M.ghorab Jan 10 '16 at 17:40
  • $\begingroup$ So, the answer is useful but not accepted. $\endgroup$ – M.ghorab Jan 10 '16 at 17:53
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    $\begingroup$ 1) Elemental metals generally are not great catalysts. Transition metals in general are not either. From elemental metals good catalysts mostly belong to 10 and 11 groups (Fe/Au rectangle). You should edit questions if that's what interesting you. 2) Transition metal compounds are often employed in redox catalysis as they plainly have more then one stable valence state. $\endgroup$ – permeakra Jan 10 '16 at 21:44