Americium

Radioactive element of the actinide series.

Symbol

Am

Discovered

First synthesized in a series of successive neutron capture reactions in the element plutonium, 239Pu, in a nuclear reactor in 1944 by American scientists under Glenn T. Seaborg at the University of California lab in Berkeley, California.

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Atomic number	95		Clip
Atomic / Molecular Weight	243.0614	gmol-1	Clip
Density	13670	kgm-3	Clip
Lattice constant	347	fm	Clip
Melting Point	1263	K	Clip
Boiling Point	2873	K	Clip
Specific heat capacity	140	Jkg-1K-1	Clip

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See also: Curium, Periodic Table.