The diagram shows a simple model of metallic structure. The metal ions are shown as tiny spheres, packed closely together in a regular pattern.

Metals have advantages over many other substances for they are hard but can be reshaped. Their crystalline structure allows ... extract copper from copper oxide using carbon.

Metal oxide semiconductor field-effect transistors (MOSFET ... The term "hole" is used to describe the theoretical lack of an electron where one could exist in an atomic structure. Both MOSFET types ...