Results for: spontaneous-fission

How does fission happen?

Nuclear fission, the fission or "splitting" of an atomic nucleus, can happen in two basic ways. One is a form of natural radioactive decay called spontaneous fission. The atom just "splits" apart. The other involves the absorption of a neutron…

What causes a splitting nucleus?

The capture of a neutron can split a nucleus - but only for certain isotopes like U-235 and Pu-239. Two naturally occurring isotopes undergo spontaneous fission, meaning the nucleus splits without neutron capture. These are 235U and 238U. A few…

What is induced nuclear fission?

We might think of induced nuclear fission as a fission reaction that occurs when a neutron is captured by, say, a uranium-235 atom and that atomic nucleus undergoes fission as a result. Most all of the fission events within a…

Who discovered uranium decay?

1896, Antoine Henri Bequerel: discovering of the radiocativity of uranium 1938, Otto Hahn and Fritz Strassmann: Discovering of the uranium fission with neutrons 1940, Gheorghi Florov and Konstantin Petrjak: discovering of the spontaneous fission of uranium

When does fission occur?

Fission can occur in two ways: spontaneous and induced. Induced is when a neutron, of just the right amount of energy, not too much and not too little, interacts with (hits) a nucleus and destabilizes it. The nucleus then splits…