Final answer:
The main types of chemical bonds are covalent, ionic, and metallic bonds. Covalent bonds involve the sharing of electrons, while ionic bonds involve the transfer of electrons. Metallic bonds occur when metal atoms share their outer electrons.
Step-by-step explanation:
The three main types of chemical bonds are covalent, ionic, and metallic bonds.
Covalent bonds occur when two atoms share electrons. An example of a covalent bond is the bond between two hydrogen atoms, where each atom shares one electron.
Ionic bonds occur when one atom transfers electrons to another atom. This creates positive and negative ions that are attracted to each other. An example of an ionic bond is the bond between sodium (Na) and chlorine (Cl) in sodium chloride (NaCl).
Metallic bonds occur when metal atoms share their outer electrons. These bonds are found in metals and contribute to their characteristic properties like conductivity. An example of a metallic bond is the bond between the atoms in a piece of copper wire.