Why can materials with metallic lattice structures be used to make wires and connections that conduct electricity in electrical circuits

Explanation:

The electrons in metallic lattice structures can flow freely as explained below.

Metallic elements are featured by metallic bonds.

The valence electrons in the metal atoms are loosely attached to the nucleus of their atoms. Thus, the electrons in a metallic structure can be shared in a way that is referred to as a "sea of electrons": the electrons are not attached to a specific nucleus but they are "delocalized", which means that they flow freely along the metallic structure.

That makes that wires and connections can conduct the electricity: the electrons flow freely.

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