In NaCl table salt , the type of bonding present is ionic bonding. Ionic bonding occurs when there is a transfer of electrons between a metal and a non-metal atom, resulting in the formation of positively charged cations and negatively charged anions. In the case of NaCl, sodium Na loses one electron to become a positively charged cation Na+ , while chlorine Cl gains one electron to become a negatively charged anion Cl- . The electrostatic attraction between these oppositely charged ions forms the ionic bond that holds the NaCl crystal lattice together.In contrast, the bonding in diamond is covalent bonding. Covalent bonding occurs when non-metal atoms share electrons to achieve a stable electron configuration. Diamond is an allotrope of carbon, and each carbon atom in the diamond structure forms four covalent bonds with four neighboring carbon atoms. These strong covalent bonds create a rigid, three-dimensional network that gives diamond its unique properties, such as hardness and high thermal conductivity.In summary, NaCl exhibits ionic bonding due to the transfer of electrons between a metal and a non-metal atom, while diamond exhibits covalent bonding due to the sharing of electrons between non-metal atoms.