AMERICIUM

 AMERICIUM (95) (Synthetic)  241(432 years)A  243(7,370 years)A 

Atomic radius:

Atomic volume:17.86 cm(3)/mol at 300Deg. Kelvin

Atomic weight:(243 - Most stable isotope) (Based on Carbon 12)

Boiling point:2880Deg. Kelvin

Covalent radius:

Crystal structure:Hexagonal

Density:13.6 g/cm(3) at 300Deg. Kelvin

Electrical conductivity:.022 10(x6) Ohm(x.1) cm(x.1) at 293Deg. Kelvin

Electron configuration:1s(2)2s(2)p(6)3s(2)p(6)3d(10)4s(2)p(6)4d(10)5s(2)p(6)

4f(14)5d(10)6s(2)5f(7)7s(2)

Electronegativity:1.3 (Pauling's)

First ionization potential:5.993 V

Heat of fusion:14.4 kJ/mol at melting point

Heat of vaporization:

Melting point:1268Deg. Kelvin

Oxidation states:6,5,4,3, amphoteric(6)

Specific heat capacity:.11 Jg(x.1) K(x.1) at 300Deg. Kelvin

Thermal conductivity:.1 W cm(x.1) Kx.1) at 300Deg. Kelvin

Description:A radioactive element produced by the bombardment of uranium with

high energy alpha particles.1

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