Elements / 26
26Fe55.845
Iron
Transition metal · d-block · ring N · spoke 8
Iron is element 26, a transition metal. It sits on ring N (period 4) on spoke 8. Follow that spoke toward the center and out again to find its chemical relatives.
Properties
| Density | 7.87 g/cm³ | Terrain → |
|---|---|---|
| Melting point | 1,811 K · 1,538 °C | Terrain → |
| Boiling point | 3,134 K · 2,861 °C | Terrain → |
| Electronegativity | 1.83 | Terrain → |
| First ionization energy | 763 kJ/mol | Terrain → |
| Atomic weight | 55.8452 u | Terrain → |
| Crustal abundance | 56,300 ppm4th most abundant in Earth's crust of 92 | Terrain → |
| Discovered | Known since antiquity | Terrain → |
Values from open reference data; see sources. "Terrain" opens that property as a 3D landscape across the whole spiral.
Two things you might not know
- Tutankhamun was buried with a dagger whose blade holds over 10% nickel, showing it was made from a meteorite.
- Earth's inner core is roughly 85% this metal by weight. It is in hemoglobin, and its oxide makes Mars look red.
Checked against eos.org, livescience.com.
Spoke 8
Ring N (period 4)
Play with Iron
Watch it fly into its seat, or raise the whole spiral into a landscape and see where it peaks.