Post-transition metals are a group of metallic elements found in the p-block of the periodic table. They include elements such as aluminum, tin, lead, and bismuth. These metals typically have lower melting and boiling points compared to transition metals and exhibit properties like malleability and ductility. Unlike transition metals, post-transition metals often have a higher electronegativity and can form covalent bonds. They are generally softer and less dense, making them useful in various applications, including electronics and packaging. Their unique properties distinguish them from both transition metals and nonmetals.