1. Half-life - Wikipedia


    A half-life usually describes the decay of discrete entities, such as radioactive atoms. In that case, it does not work to use the definition that states "half-life ...

  2. List of radioactive isotopes by half-life - Wikipedia


    This is a list of radioactive isotopes ordered by half-life from shortest to longest.

  3. Half-Life and Radioactive Decay - YouTube


    8/11/2015 · 136 - Half-Life and Radioactive Decay In this video Paul Andersen explains how a radioactive nuclei can decay by releasing an alpha, beta, or gamma ...

  4. Half-life and carbon dating | Nuclear chemistry ...


    9/11/2009 · Carbon dating is a real-life example of a first-order reaction. This video explains half-life in the context of radioactive decay. Watch the next lesson ...

  5. Half-life | Define Half-life at Dictionary.com


    Half-life definition, Physics. the time required for one half the atoms of a given amount of a radioactive substance to disintegrate. See more.

  6. BBC - GCSE Bitesize: Uses of half life


    Dating rocks. The half-life of uranium-238 is 4500 million years. When it decays it forms thorium-234 which is also unstable. Finally, after a series of radioactive ...

  7. Radioactive Decay


    Spontaneous Fission. Nuclides with atomic numbers of 90 or more undergo a form of radioactive decay known as spontaneous fission in which the parent nucleus splits ...

  8. Radiometric Dating - American Scientific Affiliation


    A response by a scientist with a Christian point of view to the young earth criticism of radiometric dating.

  9. BioMath: Carbon Dating - The Biology Project


    Carbon dating to determine the age of fossil remains. In this section we will explore the use of carbon dating to determine the age of fossil remains.

  10. Alpha Decay - Half Life | Radiation - PhET Interactive ...


    Watch alpha particles escape from a polonium nucleus, causing radioactive alpha decay. See how random decay times relate to the half life.