Worlds Within Worlds: The Story of Nuclear Energy, Volume 3 (of 3), by Isaac Asimov is part of HackerNoon’s Book Blog Post series. You can jump to any chapter in this book here. Volume III, NUCLEAR FISSION: New Elements - hackernoonbooks nuclearphysics
Worlds Within Worlds: The Story of Nuclear Energy, Volume 3 , by Isaac Asimov is part of HackerNoon’s Book Blog Post series. You can jump to any chapter in this bookEnrico Fermi and Niels Bohr discuss physics as they stroll along the Appian Way outside Rome in 1931.In 1934 Enrico Fermi began his first experiments involving the bombardment of uranium with neutrons—experiments that were to change the face of the world.
Often what happened was that the neutron was simply absorbed by the nucleus. Since the neutron has a mass number of 1 and an atomic number of 0 , a nucleus that absorbs a neutron remains an isotope of the same element, but increases its mass number. Sometimes the more massive isotope that is formed through neutron absorption is stable, as hydrogen-2 is. Sometimes it is not, but is radioactive instead. Because it has added a neutron, it has too many neutrons for stability. The best way of adjusting the matter is to emit a beta particle . This converts one of the neutrons into a proton. The mass number stays the same but the atomic number increases by one.
There are over 100 isotopes that will absorb neutrons and end by becoming an isotope of an element one higher in the atomic number scale. Fermi observed a number of these cases.
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