The science of radiation chemistry flourished from the 1940s through the 1960s as the United States weighed the benefits of several different reactor technologies to power an energy-hungry planet.

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In this lesson, students will investigate the nature of radioactivity and the effect of both distance and shielding materials on different radioactive sources using a Geiger-Muller tube with a counter ...

The element radium can be found in extremely tiny amounts in the Earth’s crust and oceans, and in its pure form it is a soft silvery metal. To an untrained eye, a small piece of radium may look like a ...