Americium information, including Technical Data, Safety Data and its properties, research, applications and other useful facts are discussed below. Scientific facts such as the atomic structure, ionization energy, abundance on Earth, conductivity and thermal properties are included.
Americium is a Block F, Group 3, Period 7 element. The electronic configuration is [Rn] 5f7 7s2. In its elemental form americium's CAS number is 7440-35-9. The americium atom has a radius of 173.pm and it's Van der Waals radius is 200.pm. Americium was discovered by Glenn T. Seaborg, Ralph A. James, Stanley G. Thompson and Albert Ghiorso in 1944.
|
américium
Americium
americio
Amerício
americio
AmericiumAmericium Safety Data.
The safety data for americium metal, nanoparticles and its compounds can vary widely depending on the form. For potential hazard information, toxicity, and road, sea and air transportation limitations, such as DOT Hazard Class, DOT Number, EU Number, NFPA Health rating and RTECS Class, please see the specific material or compound referenced in the left margin.
Ionization Energy. The ionization energy for americium (the least required energy to release a single electron from the atom in it's ground state in the gas phase) is stated in the following table: |
1st Ionization Energy |
576.39 kJ mol-1 |
2nd Ionization Energy |
- kJ mol-1 |
3rd Ionization Energy |
- kJ mol-1 |
Conductivity. As to
americium's electrical and thermal conductivity, the electrical conductivity measured in terms of electrical resistivity @
20 ºC is 68 µOcm and its electronegativities (or its ability to draw electrons relative to other elements) is
-. The thermal conductivity of americium is 10 W m-1 K-1.
Thermal Properties of Americium. The melting point and boiling point for americium are stated below. The following chart sets forth the heat of fusion, heat of vaporization and heat of atomization. |
Heat of Fusion |
14.4 kJ mol-1 |
Heat of Vaporization |
238.5 kJ mol-1 |
Heat of Atomization |
266 kJ mol-1 |
| Formula | Atomic Number | Molecular Weight | Electronegativity (Pauling) | Density | Melting Point | Boiling Point |
Vanderwaals radius |
Ionic radius | Energy of first ionization |
| Am | 95 | 243 g.mol -1 | 1.3 | 12 g/L | 1176 °C | 2011 °C | .200 nm | 173 pm | 576.39 kJ.mol-1 |
| PRODUCT CATALOG | UK Operations | Submicron & Nanopowder | Tolling | Ultra High Purity | Sputtering Target | Crystal Growth | Rod, Plate, Powder, etc. | Foil |
This website and all pages, designs, concepts, logos, and color schemes herein are
the copyrighted proprietary rights and intellectual property of American Elements.
