Radium

Isotopes

Radium has 25 different isotopes, four of which are found in nature, with radium-226 being the most common. Ra-223, Ra-224, Ra-226 and Ra-228 are all generated in the decay of either U or Th. Ra-226 is a product of U-238 decay, and is the longest-lived isotope of radium with a half-life of 1602 years; next longest is Ra-228, a product of Th-232 breakdown, with a half-life of 6.7 years.

Related Topics:
Isotope - U - Th - Half-life

~ ~ ~ ~ ~ ~ ~ ~ ~ ~