Radioactive emission from radium

Radioactive emission from radium

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This image is part of the feature Top 50 Science
This image is part of the feature Marie Curie Anniversary

Credit: C. POWELL, P. FOWLER & D. PERKINS/SCIENCE PHOTO LIBRARY

Caption: Radium alpha particles. Coloured image of the radioactive emission of alpha particles from radium. A speck of radium salt was placed on a special emulsion on a photographic plate; when developed, the emulsion reveals the yellow tracks of alpha particles emitted by the radium. Radium is the most powerful radioactive substance known; it emits radiation a million times more intensely than uranium. It was discovered by the French scientists Marie and Pierre Curie in 1898.

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Keywords: alpha particles, alpha ray, atomic, emulsion photo, emulsion photograph, image, in physics, motion action, move movement moving, nuclear emulsion, nucleus, particle, particle physics, radioactivity from, radioactivity made visible, radium

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