Which is a characteristic of the electron sea model for metallic bonding? 1. molecular orbitals overlap to produce bands. 2. electrons flow easily between metal nuclei. 3. electrons are in fixed positions in the orbitals. 4. atomic nuclei are arranged in an irregular pattern.

option 2, electrons flow easily between metal nuclei.

The model of the sea of electrons states that all the metallic atoms of a metallic solid yield their valence electrons to form a sea of electrons. The electrons present in the outermost levels of energy of the metal atoms are not retained by any specific atom but can be easily moved from one atom to the neighbor. These electrons are called delocalized.