A metal is a material that is typically hard, opaque, shiny, and has good electrical and thermal conductivity...
A metal is a material that is typically hard, opaque, shiny, and has good electrical and thermal conductivity...
A metal is a material that is typically hard, opaque, shiny, and has good electrical and thermal conductivity...
A metal is a material that is typically hard, opaque, shiny, and has good electrical and thermal conductivity...