As part of his diagnostic testing, baby sean underwent a sweat chloride test that measures the levels of nacl in the sweat from the skin on the forearm. how does the bond between nacl form?

The bond between NaCl is called an ionic bond. This type of bonding involves the complete transfer of the valence electrons in an atom. The metal atom loses some of its electrons making the atom a positive ion while the nonmetal accepts the electrons making it a negative ion.