Iron at Chemical Elements.com 


 

Basic Information


Name: Iron
Symbol: Fe
Atomic Number: 26
Atomic Mass: 55.845 amu
Melting Point: 1535.0 °C (1808.15 °K, 2795.0 °F)
Boiling Point: 2750.0 °C (3023.15 °K, 4982.0 °F)
Number of Protons/Electrons: 26
Number of Neutrons: 30
Classification: Transition Metal
Crystal Structure: Cubic
Density @ 293 K: 7.86 g/cm3
Color: Silvery


Atomic Structure

[Bohr Model of Iron]  
Number of Energy Levels: 4

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 14
    Fourth Energy Level: 2

Isotopes

Isotope Half Life
Fe-52 8.3 hours
Fe-54 Stable
Fe-55 2.7 years
Fe-56 Stable
Fe-57 Stable
Fe-58 Stable
Fe-59 54.5 days
Fe-60 1500000.0 years

Facts


Date of Discovery: Known to the ancients
Discoverer: Unknown
Name Origin: Latin
Symbol Origin: From the Latin word ferrum (iron)
Uses: steel, hemoglobin (carries oxygen in blood)
Obtained From: iron ores