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Nuclear fission - Wikipedia


Some neutrons will impact fuel nuclei and induce further ... In-situ plutonium production also contributes to the neutron chain reaction in other types of reactors after ... fast neutrons from the f...

Neutrons released in a fission reaction can strike other nuclei and ...


A chain reaction. ... Neutrons released in a fission reaction can strike other nuclei and cause? Neutrons ... How many neutrons are released in nuclear fission?

Uranium-235 Chain Reaction - Hyperphysics


Form of Energy Released, Amount of Energy Released (MeV) ... If at least one neutron from each fission strikes another U-235 nucleus and initiates fission, then  ...

What is Fission? Definition & Facts about Nuclear Energy


Sep 19, 2012 ... An atom contains protons and neutrons in its central nucleus. ... it has been bombarded by other subatomic particles known as neutrinos. ... on to cause two separate reactions, each of which can cause at least two more. A single impact can jumpstart a chain reaction, driving the release of still more energy.

Science Behind the Atom Bomb | Atomic Heritage Foundation


Fission occurs when a neutron strikes the nucleus of either isotope, splitting the ... This is known as a chain reaction and is what causes an atomic explosion. ... ensure that neutrons released by fission will strike another nucleus, thus producing a ... Powered by plutonium, Fat Man could not use the same gun-type design that .....

Fusion vs. Fission - Fusion Torch


236U is unstable and this causes the atom to fission. ... When the atom is split, 1 additional neutron is released. ... Those 4 neutrons can strike 4 more 235U atoms , releasing even more ... Animation of a chain reaction fissioning many 235U atoms .... Nuclear fusion, on the other hand, requires that the fuel nuclei be moving ...

What's the difference between fission & fusion? - It's a Question of ...


The free neutrons strike other uranium nuclei, creating a chain reaction. ... The two types of nuclear reactions used to produce energy are fission and fusion. ... attainment of a "critical mass") the emitted neutrons can split further atoms, which in ... with tritium creates helium-4, frees a remaining neutron, and releases ...

Energy from the Nucleus

electron6.phys.utk.edu/phys250/modules/module 5/nuclear_energy.htm

Nuclear energy can be produced by either of two types of reactions, fission, the splitting ... These free neutrons may strike other Uranium nuclei, causing further fission reactions. ... The result is that several other nuclei fission, and each of these cause ... To get a feeling for the amount of energy released in a fission reaction,...

PhET Simulation


Find and open the simulation called Nuclear Fission ... 1) What happens when the U-235 nucleus is “hit” with a neutron? ... happen here, describe all of them in as much detail as you can. ... Does this cause a chain reaction? ... No chain reaction takes place because no neutrons are released to continue the reaction.

Activity: Chain Reaction - NASA


exerted continuously, will cause acceleration to grow very slowly," Kos says. "It's like .... neutrons can strike other nuclei, causing fission. When a ... continue to split, a significant amount of energy is released from the reaction. The heat released ...