Po Polonium     Atomic number : 84 
    Relative atomic mass (12C = 12.0000) :  208.9824 (Po-209) 
    P H Y S I C A L     D A T A
Group 16 metal
 
Density / kg m-3 :  9320 () [293 K]
  		Melting point / K :  527 
 
Boiling point / K :  1235
 
    D I S C O V E R Y
Discovered in 1898 by Marie Curie at Paris, France.
 
    G E O L O G I C A L     D A T A
Abundances
 
Sun (relative to H = 1 × 1012) : n.a.
 
Earth's crust / p.p.m. : traces in uranium ores
 
   
 
Seawater / p.p.m. : nil
    B I O L O G I C A L     D A T A
Level in humans
 
nil
 
   
 
Daily dietary intake : nil
 
Total mass of element
in average (70 kg) person : nil
 

NetElements II  

A portrait of polonium 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.
Unauthorised reproduction of any aspect of this site is strictly prohibited.
NetElements II last modified October 27th, 1999