Study radioactivity, its discovery by Henri Becquerel, key facts, and modern uses. Learn how radioactivity supports science ...

The nuclei of certain atoms are stable and under ordinary circumstances, stable nuclei do not undergo change. The nuclei of other atoms are unstable. These nuclei undergo change spontaneously, that is ...

When Marie and Pierre Curie discovered the natural radioactive elements polonium and radium, they did something truly remarkable– they uncovered an entirely new property of matter. The Curies’ work ...

Radiation risk can be measured, understood and controlled in ways that keep people safe, including from contaminated foods.

Radioactivity figures large in the public consciousness in 2011, but many chemists may think it matters little to their work, if at all. Introductory chemistry classes taught us the names of the most ...

Radium's energy is incorporated into bone, with serious health consequences Modern life have you feeling frazzled? Flagging a bit as you rush through your day? Maybe you’re one of the millions of ...

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