Symbol: Fe Atomic mass: 55.845 u Atomic number: 26 Electron configuration: [Ar] 3d64s2 Melting point: 2,800°F (1,538°C) Electrons per shell: 2, 8, 14, 2 Density: 7.874 g/cm³ (near room temperature) Archeologists believe that iron was discovered by the Hittites of ancient Egypt somewhere between 5000 and 3000 BCE. During this time, they hammered or pounded the metal to create tools and weapons. They found and extracted it from meteorites and used the ore to make spearheads, tools and other trinkets.
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