Americium was discovered by Glenn Seaborg, Ralph James., L. Morgan, Albert Ghiorso at 1944 in USA.
Origin of name: from the English word "America".
Atomic Number: 96
Atomic Weight: 247
Melting Point: 1618 K (1345°C or 2453°F)
Boiling Point: ~3400 K (~3100°C or ~5600°F)
Density: 13.51 grams per cubic centimeter
Phase at Room Temperature: Solid
Element Classification: Metal
Period Number: 7 Group Number: none Group Name: Actinide