isotope: Quick Facts

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phase diagrams of helium-3 and helium-4

What are isotopes and how do they work?

How are radioisotopes used in medical diagnosis and treatment?

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Topics

stable isotope isotope effect cosmogenic isotope fermium-257 chlorine-36 fermium-256 francium-223 hafnium-180m helium-3 helium-4 Metalloid nonmetal ion subatomic particle rare-earth element radioactivity Atomism transition metal periodic table hydrogen

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Key People

Francis William Aston.

Francis William Aston

British physicist

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Frederick Soddy

British chemist

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Theodore William Richards

American chemist

Periodic Table of the elements concept image (chemistry)

Facts You Should Know: The Periodic Table Quiz