Gd Gadolinium     Atomic number : 64 
    Relative atomic mass (12C = 12.0000) :  157.25 
    P H Y S I C A L     D A T A
Group 3 lanthanide
 
Density / kg m-3 :  7900.4 [298 K]
 
Melting point / K :  1586 
 
Boiling point / K :  3539
 
    D I S C O V E R Y
Gadolinium was discovered in 1880 by J.C. Galissard de Marignac at Geneva, Switzerland.
 
    G E O L O G I C A L     D A T A
Abundances
 
Sun (relative to H = 1 × 1012) : 13.2
 
Earth's crust / p.p.m. : 7.7
 
Residence time / years : 300
 
Classification : recycled
 
Oxidation state : III
 
  
 
Seawater / p.p.m. :
    Atlantic surface : 5.2 × 10-7
    Atlantic deep : 9.3 × 10-7
    Pacific surface : 6.0 × 10-7
    Pacific deep : 15 × 10-7
    B I O L O G I C A L     D A T A
Level in humans
 
Organs: n.a., but very low
 
  
 
Daily dietary intake : n.a.
 
Total mass of element
in average (70 kg) person :
n.a., but very low

 

NetElements II  

A portrait of gadolinium 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