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The chemical nature of the alpha particles from radioactive substances cover

The chemical nature of the alpha particles from radioactive substances

By Ernest Rutherford
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Science - Physics

About This Book

The lecture surveys experimental study of alpha radiation, tracing early observations that separated α, β, and γ rays and describing experiments demonstrating that α-rays consist of positively charged, massive particles. It explains magnetic and electric deflection measurements that yielded particle velocities and charge-to-mass ratios indicating a mass about twice that of hydrogen and suggests the α-particle may be a helium or hydrogen atom. The results are placed in the context of the emerging transformation theory of radioactivity, arguing that emission of α-particles produces successive distinct radioactive substances that decay according to definite laws.

About the Author

Rutherford, Ernest portrait

Ernest Rutherford

Ernest Rutherford was a pioneering physicist known for his groundbreaking work in nuclear physics and radioactivity. Born in New Zealand, he became a prominent figure in the scientific community, earning the title 'father of nuclear physics.' His notable contributions include the discovery of the alpha and beta particles and the concept of radioactive decay. Rutherford's influential works, such as "Radio-Activity" and his address on the disintegration of elements, laid the foundation for modern atomic theory. His research not only advanced scientific understanding but also paved the way for future developments in chemistry and physics.

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