Fe
Iron
Z 26 55.845 g/molTransition Metal
Group
8
Period
4
Block
d
Occurrence
Exploding white dwarfs 68%Exploding massive stars 32%Geochemical class: Siderophile
Biological Role
Humans: MicronutrientPlants: EssentialMicrobes: Essential
History
~5000 BCE (discovery)
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Named By
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Latin Name
Ferrum
Abundance
Solar System0.127425%1,274.25 ppm
x
Sun0.119112%1,191.12 ppm
x
Meteorites18.5%185,000 ppm
x
Earth's crust5.21574%52,157.4 ppm
x
Oceans< 0.0001%0.002 ppm
x
Humans0.006%60 ppm
x