Americium is a synthetic element that has the symbol Am and atomic number 95. This transuranic element of the actinide series is located in the periodic table below the lanthanide element europium, and thus by analogy was named after another continent, America. Americium was first produced in 1944 by the group of Glenn T. Seaborg at the University of California, Berkeley. Read more
What do spacecraft and smoke alarms have in common? A material commonly used to detect smoke on Earth could soon power robotic missions to other planets. Previous spacecraft travelling to the outer solar system have been powered by the decay of plutonium-238. The isotope is running out, though. Read more
Americium-241 is the most prevalent isotope of americium in nuclear waste. It is the americium isotope used in smoke detectors based on ionisation chambers. It is a potential fuel for long-lifetime radioisotope thermoelectric generators. Read more