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You are probably referring to nuclear fission. this occurs in some isotopes of heavy elements, most notably Uranium 235 and Plutonium 239. The fission of the nucleus releases energy, and forms two fragments which are nuclei of two lighter elements. The reaction can be controlled to occur at a steady rate thus releasing a steady supply of thermal energy.
What else can I help you with?
What is the bullet that starts a fission reaction?
The bullet that starts a fission reaction is a neutron. When a neutron collides with the nucleus of a fissile isotope, such as uranium-235, it can induce the nucleus to undergo fission, releasing more neutrons and a large amount of energy.
What is required for a chain reaction to start?
For a chain reaction to start, there needs to be a sufficient amount of fissile material, such as uranium-235 or plutonium-239, present in a compact enough form to reach critical mass. Additionally, there must be a neutron source to initiate the reaction by introducing a neutron to the fissile material.
What is meant by supercritical andhow dose it relate to making a nuclear bomb?
subcritical - a mass or arrangement of fissionable or fissile material unable to sustain a neutron chain reaction. It can provide a fixed amount of neutron multiplication from a neutron source, but after removal of the neutron source the chain reaction rate drops exponentially.critical - a mass or arrangement of fissionable or fissile material capable of sustaining a constant neutron chain reaction. No increase or decrease. (Nuclear reactors operate at critical)supercritical - a mass or arrangement of fissionable or fissile material capable of not only sustaining a neutron chain reaction, but once initiated the chain reaction rate rises exponentially. (Nuclear fission bombs explode when made supercritical)A nuclear fission bomb must have 2 of these states: subcritical (so that it can't explode until desired) and supercritical (so that it explodes with an effective yield). This requires a rapid "assembly" system using conventional explosives to rearrange the fissile material from subcritical to supercritical in about 1ms. A neutron source starts the chain reaction and the explosion completes in about 1 microsecond.
What particle is needed to begin a nuclear chain reaction?
Neutrons are the important particles of nuclear chain reactions and the reactions depend on them. The neutrons do not really start the fission, reaction, however, because the neutrons come from fission in the fuel.The material in the fuel, typically a mix of 235U and 238U, undergoes fission spontaneously. When a fission event happens, more neutrons, typically two or three, are emitted. These bounce about from atom to atom, until they cause another atom to undergo fission, releasing more neutrons to increase the rate at which atoms undergo fission.But the neutrons needed for the chain reaction are actually produced by the fuel spontaneously, and these are produce in an ongoing manner with or without critical mass. So it is not a particle that starts the chain reaction; it is the act of putting together a critical mass.
What is the positron emission from silver 31?
Silver-31 undergoes positron emission to form palladium-31 by emitting a positron (e+) and turning one of its protons into a neutron. This reaction helps stabilize the nucleus by converting a proton into a neutron.
What did James chadwick do?
James chadwick was the discoverer of neutron. He gave the famous neutron reaction.
In a nuclear fission reaction a freely moving neutron?
In a nuclear fission reaction, a freely moving neutron undergoes neutron capture and initiates the nuclear fission of a fuel atom.
What is needed to get a reaction started?
A neutron.
Was James Chadwick?
James chadwick was the discoverer of neutron. He gave the famous neutron reaction.
What is the bullet that starts a fission reaction?
The bullet that starts a fission reaction is a neutron. When a neutron collides with the nucleus of a fissile isotope, such as uranium-235, it can induce the nucleus to undergo fission, releasing more neutrons and a large amount of energy.
What kind of decay is it when a nuclear reaction in which a neutron is transformed into a proton and in electron?
When a neutron -> proton, it is called a Beta - (minus) decay.
What does initiation of nuclear weapons mean?
starting the fission neutron chain reaction using some kind of pulsed neutron source.
What accomplishes the release of the nuclear energy in a reactor?
neutron chain reaction
Name the element when uranium captures a fast neutron?
The element is determined by the number of protons. When uranium captures a fast neutron it is still uranium but has an increased atomic mass. Fast neutron capture may encourage a further reaction but it depends on which uranium isotope you start with as to the increase in probability some further reaction will occur and which reaction that might be.
What particle is needed to begin nuclear chain reaction?
Neutron particle is needed to begin nuclear chain reaction.
Which sub-atomic particle creates chemical reaction?
Proton and Neutron do not take part in chemical reaction. Only electron takes part in the reaction.
When a nucleus absorbs a neutron and then breaks apart there are many products of the reaction . Which of these is not a product of a nuclear fission reaction?
Uranium-235
