Ra224
Ra-224 is a radioactive isotope of the element radium (chemical symbol Ra) with atomic number 88 and a mass number of 224. It occurs as a transient member of the thorium-232 decay chain and can also be produced in nuclear reactors or other laboratories. Its half-life is about 3.6 days, making it relatively short-lived compared with other radium nuclides.
Ra-224 decays by alpha emission to radon-220 (thoron). The thoron daughter products that follow are short-lived
Occurrence and production in nature are limited. Ra-224 is present only in trace amounts within the natural
Applications are mainly research-oriented due to its short half-life and strong alpha emission. Ra-224 is used
Safety considerations are important: as with other radium isotopes, Ra-224 poses radiological hazards if ingested or