![]() Another isotope is mesothorium, or radium-228, which has a half-life of six years. That means it takes 1,600 years for the radium’s radioactive properties to deteriorate to half of its original strength. The most stable isotope, now known as radium-226, has a half-life of 1,600 years. What they found was that radium had different isotopes depending on the number of neutrons they were made up of. The radioactive isotopes of radium were first discovered by Marie and Pierre Curie in 1898. But few in the manufacturing industry were paying attention. The paint was applied to the hands and markings of watch dials so that they could be read at night.Īround the same time, the dangers of radium were being discovered and made public. The recommended dose was to drink five to seven glasses of radioactive water per day.Īnother use for radium was as an ingredient to make paint glow-in-the-dark. Supposedly, a person could buy the jar, fill it with water and enjoy the benefits of radium-infused water. One such product was an expensive glass jar lined with radium. Beauty and health products were soon popping up, advertising radium as a special ingredient. Suddenly radium was seen as a miracle cure, and this is how it was marketed to the public. They found that radium, a chemical element present in uranium, could be used against cancerous tumors and kill diseased tissue.
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