At the beginning of the 20 th century, radium was a popular additive in consumer products such as toothpaste, hair creams, and even food items because of its supposed beneficial health properties. The half-life of radium is approximately 1,600 years.įollowing its discovery over 100 years ago, radium has been used in numerous industrial and consumer applications. The time required for the intensity to decrease by one-half is referred to as the half-life. The intensity of radiation from radioactive materials decreases over time. Radium is produced by the radioactive decay of uranium. 21, 2018.Radium is a radioactive substance found in nature. Centers for Disease Control and Prevention.
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