Iron (Fe)
Iron is a chemical element of the periodic table with chemical symbol Fe and atomic number 26 with an atomic weight of 55.8452 u and is classed as transition metal and is part of group 8 (iron group). Iron is solid at room temperature.
Iron in the periodic table
| Symbol | Fe |
| Atomic number | 26 |
| Group | 8 (Iron group) |
| Period | 4 |
| Block | d |
| Classification | Transition Metal |
| Appearance | Lustrous metallic with a grayish tinge |
| Color | Gray |
| Number of protons | 26 p + |
| Number of neutrons | 30 n 0 |
| Number of electrons | 26 e - |
Wikipedia
From Wikipedia, the free encyclopediaIron 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.
Physical properties
| Phase at STP | Solid |
| Density | 7.874 g/cm 3 |
| Atomic weight | 55.8452 u |
