Question about conductors, wires and lattice of ions

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SUMMARY

The discussion clarifies the distinction between solid ionic lattices and conductive materials like metals. While solid ionic lattices cannot conduct electricity due to the immobility of ions, metals allow electrons to move freely, enabling electrical conductivity. Key concepts such as conduction band, valence band, and Fermi energy are essential for understanding this phenomenon. The ability of electrons to move in metals, while ions remain fixed, is what facilitates current flow.

PREREQUISITES
  • Understanding of conduction band and valence band concepts
  • Familiarity with Fermi energy/level in solid-state physics
  • Basic knowledge of electrical resistance and current
  • Concept of ionic lattices and their properties
NEXT STEPS
  • Research the properties of conduction band and valence band in metals
  • Study the concept of Fermi energy and its role in electrical conductivity
  • Explore the differences between conductors and insulators in solid-state physics
  • Investigate the relationship between electron mobility and electrical resistance
USEFUL FOR

This discussion is beneficial for students studying physics, particularly those in GCSE courses, as well as educators and anyone interested in the fundamentals of electrical conductivity and solid-state materials.

JoeN
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Hi guys, sorry as this is probably a silly question. This isn't homework, but it's something I'm confused about in my GCSE course.

If a lattice of ions can't conduct electricity when solid, then why can a wire (composed of these lattices (I think?)) conduct electricity?

The electrons in a circuit collide with these lattices and create resistance and whatnot, I understand that. Sorry for the waste of time if it's an obvious answer!

thanks.
 
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It's because electrons can move in a metal. So the ions can stay immobile and you get a current.
 

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