Is americium radioactive? | AnswersDrive

Americium is a radioactive chemical element with symbol Am and atomic number 95. It is a transuranic member of the actinide series, in the periodic table located under the lanthanide element europium, and thus by analogy was named after the Americas.

Herein, how is radiation used in smoke detectors?

Smoke from the fire is detected by the device, which then gives off an alarm. One type of smoke detector uses americium-241, a source of alpha radiation, to detect smoke. The diagram shows how it looks inside. The alpha radiation ionises the air particles inside the smoke detector.

What radioactive isotope is used in smoke detectors?

Radioactive isotopes which emit alpha particles can be used in smoke detectors. The animation below shows a smoke detector with the radioisotope Americium 241 as the alpha source.

How is americium used?

Americium's most stable isotope, americium-243, has a half-life of about 7,370 years. It decays into neptunium-239 through alpha decay. Americium can be produced in kilogram quantities and has a few practical uses. It is used in smoke detectors and can be used as a portable source of gamma rays.

You May Like Also

  • How long does americium last?
  • How long does americium last?
  • What is the use of americium?
  • Where is americium found?
  • Where is americium 241 found?
  • How is americium 241 made?
  • What group is americium in?
  • How much is the cost of americium?