Sc Scandium     Atomic number : 21 
    Relative atomic mass (12C = 12.0000) :  44.955910 
    P H Y S I C A L     D A T A
Group 3 transition metal
 
Density / kg m-3 :  2989 [273 K]
 
Melting point / K :  1814 
 
Boiling point / K :  3104
 
    D I S C O V E R Y
Discovered in 1879 by L.F. Nilson at Uppsala, Sweden.
 
    G E O L O G I C A L     D A T A
Abundances
 
Sun (relative to H = 1 × 1012) : 1100
 
Earth's crust / p.p.m. : 16
 
Residence time / years : 5000
 
Classification : recycled
 
Oxidation state : recycled
 
  
 
Seawater / p.p.m. :
    Atlantic surface : 6.1 × 10-7
    Atlantic deep : 8.8 × 10-7
    Pacific surface : 3.5 × 10-7
    Pacific deep : 7.9 × 10-7
    B I O L O G I C A L     D A T A
Level in humans
 
Blood / mg dm-3 : c. 0.008
 
Organs: III
 
  
 
Daily dietary intake : c. 0.00005 mg
 
Total mass of element
in average (70 kg) person :
c. 0.2 mg

 

NetElements II  

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


Text copyright John Emsley 1999.   HTML and page layout copyright Simon Hall 1999.
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NetElements II last modified October 27th, 1999