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Americium-241 emits alpha particle radiation which is used to distinguish when smoke particles are present.

Carbon-14 is a unstable isotope used to find the age of carbon materials that are thousands of years old.

An isotope is a form of a chemical element whose atomic nucleus contains a specific number of neutron s, in addition to the number of proton s that uniquely defines the element.

The nuclei of most atom s contain neutrons as well as protons.

Radioactive isotopes or radioisotopes are isotopes of an element having an unstable nucleus that decays (emitting alpha, beta, or gamma rays) until stability is reached.

The stable end product is a nonradioactive isotope of another element.

Atoms have a fixed number of protons and electrons, however, atoms can have various amounts of neutrons.

Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.

An isotope is a variation of an element that contains the same number of protons and electrons, but has different numbers of neutrons.

You will learn how to identify stable and unstable isotopes by examining their atomic structure, and discover the radioactivity of unstable isotopes. 316 Institutions have accepted or given pre-approval for credit transfer.

N-15 is also used to study the uptake of Nitrogen in plants and the metabolism of proteins in the human body.

N-14 is used for the production of the PET radioisotope C-11.


  1. Useful for calculating today's activity for any radioactive isotope. You may also back decay sources to find out the original activity or for any date, knowing the current activity.

  2. Radiometric dating n. A method for determining the age of an object based on the concentration of a particular radioactive isotope contained within it and the half-life of.

  3. Arguably the most important analytical approach in archaeology since radiocarbon dating, stable isotope analysis of recovered archaeological remains provides se

  4. Are all atoms of an element the same? How can you tell one isotope from another? Use the sim to learn about isotopes and how abundance relates to the average atomic mass of an element.

  5. An isotope is a form of a chemical element whose atomic nucleus contains a specific number of neutrons, in addition to the number of protons that uniquely defines the element.

  6. Coverage includes Albuquerque Isotopes tickets, scores, stats, news and more.

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