👉 Metalleity is a property that describes how hard a metal is. It is determined by the number of atoms in each molecule, and the larger the number of atoms per unit mass, the harder the metal is. Metalleities can be classified into two categories: metallic and non-metalllic. Metallic metals are those where more than one atom is bonded to form a single molecule. Examples include iron (Fe), gold (Au), and silver (Ag). These metals have a high
