Am Americium     Atomic number : 95 
    Relative atomic mass (12C = 12.0000) :  243.0614 (Am-243) 
    P H Y S I C A L     D A T A
Group 3 actanide
Density / kg m-3 :  13 670 [293 K]
Melting point / K :  1445 
Boiling point / K :  2880
    D I S C O V E R Y
Americium was discovered in 1944 by Glen T. Seaborg, R.A. James, L.O. Morgan, and A. Ghiorso at Chicago, Illinois, USA.
    G E O L O G I C A L     D A T A
Sun (relative to H = 1 × 1012) : n.a.
Earth's crust / p.p.m. : nil
Seawater / p.p.m. : nil
    B I O L O G I C A L     D A T A
Level in humans
Daily dietary intake : nil
Total mass of element
in average (70 kg) person :


NetElements II  

A portrait of americium 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