Iron (Fe), element 26 – Learn Acer periodic table

Iron

Transition metal, atomic number 26.

Iron is a chemical element with symbol Fe (from Latin:ferrum) and atomic number 26. It is a metal in the first transition series. It is by mass the most common element on Earth, forming much of Earth's outer and inner core.

Facts

Symbol Fe. Atomic mass 55.8452 u. Group 8, period 4. Electron configuration [Ar] 3d6 4s2. Electrons per shell 2, 8, 14, 2. State at room temperature: Solid. Melting point 1537.8 °C, boiling point 2860.8 °C. Discovered by 5000 BC.

Element data from Wikipedia, CC BY-SA 3.0.