Ce Cerium     Atomic number : 58 
    Relative atomic mass (12C = 12.0000) :  140.115 
    P H Y S I C A L     D A T A
Group 3 lanthanide
 
Density / kg m-3 :  8240 (); 6749 (); 6773 (); 6700 () [298 K]
 
Melting point / K :  1072 
 
Boiling point / K :  3699
 
    D I S C O V E R Y
Cerium was discovered in 1803 by J.J. Berzelius and W. Hisinger at Vestmanland, Sweden.
 
    G E O L O G I C A L     D A T A
Abundances
 
Sun (relative to H = 1 × 1012) : 35.5
 
Earth's crust / p.p.m. : 68
 
Residence time / years : 100
 
Classification : scavenged
 
Oxidation state : III
 
  
 
Seawater / p.p.m. :
    Atlantic surface : 9.0 × 10-6
    Atlantic deep : 2.6 × 10-6
    Pacific surface : 1.5 × 10-6
    Pacific deep : 0.5 × 10-6
    B I O L O G I C A L     D A T A
Level in humans
 
Blood / mg dm-3 : < 0.002
 
Bone / p.p.m. : 2.7
 
Liver / p.p.m. : 0.29
 
Muscle / p.p.m. : n.a.
 
  
 
Daily dietary intake : n.a., but very low
 
Total mass of element
in average (70 kg) person :
40 mg

 

NetElements II  

A portrait of cerium is available on the Visual Elements site. Up to 200 individual items of information on this element are available in The Elements.


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NetElements II last modified October 27th, 1999