Atomic number: 95
Density at 25°C: solid: density: 12 g·cm−3
This element radioactive element is most widely found in smoke detectors, as part of section called a an ionization chamber. It has been proposed as a fuel for nuclear powered spacecraft. It was named Americium as it sits just below Europium on the periodic table
Americium was first produced in 1944 by the group of Glenn T. Seaborg at the University of California, Berkeley.
Use, natural applications or common combinations:
- Smoke detectors - for producing alpha particles
- Existing americium is found in the areas used for nuclear weapons tests in the atmosphere between 1945 and 1980
- Neutron source when pressed with beryllium
- portable spectrometers alpha and gamma emitter.
- Standard atomic weight: (243)
- Melting point: 1176 °C
- Boiling point: 2607 °C
- Radioactivity: all radioactive
- 241Am as americium oxide in smoke detectors has half-life of 432.2 years changing to neptunium via alpha decay.
- 243Am half-life of 7370 years
- 241Am half-life of 432.2 years