Why is iron a better conductor of electricity than zinc?
This is an excellent question, and one which made me think twice. It is arguably a manifestation of metallic bonding.
In metallic bonding, each metal atom is conceived to contribute 1 or more electrons to the metallic lattice to give, as commonly expressed,
Such a picture of delocalized bonding rationalizes common metallic properties: hardness; non-molecularity; malleability; ductility ; and electrical conductivity. Because we have a partially filled
Anyway, take all this with a gain of salt. There may be better answers available from some materials science guru.