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You have to look at the proton count. U-235 has 92 p and 143 n. Iodine-135 is an unstable isotope that decays to Xe-135 with half life 6.5 hours, I has 53 p and therefore I-135 has 82 n, whilst Yttrium has 39 p and therefore Y-97 has 58 n. (All isotopes of a particular element have the same number of protons, only the neutron count varies). Therefore as you suggest, the proton count is preserved, 53 + 39 = 92. However counting neutrons, we have 143 to start and 82 + 58 = 140 after the fission, so 3 must have been emitted. In fact the average neutron emission from U-235 is about 2.5 per fission, because some routes give 3 and some give 2.
What else can I help you with?
A nucleus captures two neutrons and decays to produce one neutron is this process likely to produce a chain reaction?
Yes, if the nucleus is undergoing fission and releasing additional neutrons upon decay, capturing two neutrons could contribute to a chain reaction by generating more fission events and more neutrons. However, the likelihood of a chain reaction occurring also depends on the specific nucleus involved and the surrounding conditions.
What are the elements produced by a fission reaction?
1. Fission products (lighter elements) 2. Energy from the loss of mass, appears initially as kinetic energy which is absorbed in the fuel bulk and transformed to thermal energy (heat) 3. Free neutrons-average 2.5 per fission 4. Gamma radiation
Why are graphite rods used in a nuclear pile?
Graphite is a "moderator" that slows down the fast neutrons which are produced during the fission process. Fast neutrons are captured by uranium-238 atoms removing them from the chain reaction process. Slow "thermal" neutrons avoid uranium-238 atoms and easily split uranium-235 atoms, producing 2 to 3 more neutrons that can continue the chain reaction. For a moderator to be effective it must slow neutrons rapidly (before too many can be captured by uranium-238 atoms and thus removed from the chain reaction). The most effective moderators in decreasing order are: heavy water (D2O), graphite (C), light water (H2O).
What is a nuclear explostion?
A nuclear explosion is the uncontrolled reaction (either fusion of fission) of nuclei and nuclei (fusion) or nuclei and neutrons (fission). Both processes produce vast amoutns of energy, as well as more nuclei or neutrons (for fusion or fission, respectively) to continue the chain reaction. This energy, if not moderated (such as in the case of a nuclear reactor, in which this reaction is harnased to produce electricity), explodes with a force many many times that of an equal quantity of dynamite (on the order of tens or even hundreds of thousands of times more force) or other conventional explosives.
What does a 'reflector' do in the core of a fission atomic bomb?
The reflector in a nuclear weapon core is made of a material which can reflect neutrons from fission in the core back into the core, instead of wasting them. A tamper can permit a smaller mass of nuclear fuel (an unreflected subcritical mass of nuclear material can quickly become critical if a reflector is used). Depending on the material, they can also have a neutron-moderation effect. The tamper in many nuclear weapons is also the reflector.
How many neutrons are produced during a typical uranium fission reaction and what is the role of these neutrons in a nuclear chain reaction?
A typical uranium fission event produces 2 to 3 neutrons. These neutrons are moderated (slowed down) and go on to initiate the fission of more uranium. On average, in a controlled reaction that is maintained at normal criticality (KEffective = 1), each fission creates exactly one neutron that is used to produce another fission.
How many neutrons are there when uranium 235 is bombarded with a neutron?
When uranium-235 is bombarded with a neutron, it may undergo a fission reaction, resulting in the formation of multiple fission products, which may include different numbers of neutrons depending on the specific reaction that takes place. Typically, fission of uranium-235 produces around 2 to 3 neutrons per fission event.
A nuclear fission reaction occurs when a U-235 nucleus is bombarded by a neutron the products are xe 143 3 neutrons and a strontium isotope?
In a nuclear fission reaction, a U-235 nucleus absorbs a neutron and undergoes fission into smaller nuclei such as Xe-143, Sr, and several neutrons. This process releases a large amount of energy and additional neutrons, which can initiate a chain reaction in a nuclear reactor.
A nucleus captures two neutrons and decays to produce one neutron is this process likely to produce a chain reaction?
Yes, if the nucleus is undergoing fission and releasing additional neutrons upon decay, capturing two neutrons could contribute to a chain reaction by generating more fission events and more neutrons. However, the likelihood of a chain reaction occurring also depends on the specific nucleus involved and the surrounding conditions.
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
What are the elements produced by a fission reaction?
1. Fission products (lighter elements) 2. Energy from the loss of mass, appears initially as kinetic energy which is absorbed in the fuel bulk and transformed to thermal energy (heat) 3. Free neutrons-average 2.5 per fission 4. Gamma radiation
How is nuclear fission like a chain reaction?
One large nucleus, typically uranium, undergoes fission and releases several neutrons along with the major fission products. These neutrons strike more uranium atoms and are absorbed by the nucleus causing it to become unstable. It undergoes fission releasing more neutrons and more fission products. These neutrons strike more uranium atoms etc.
Are fission products smaller than neutrons?
Fission produces many different products, some of which are neutrons, and some of which are larger than neutrons, and some of which are smaller than neutrons.
If For a sustainable fission reaction each fission must produce exactly how many additional fission reaction(s).?
To sustain a fission chain reaction, each fission reaction must result in one more fission reaction. And that one should result in one more, and so on.
Why do they happen nuclear explosion?
Nuclear explosions happen for many reasons: An uncontrolled chain reaction (fission reaction) occurs with uranium 238, A fission reaction is where 1 large nucleus (centre of an atom) splits up into 2 or more smaller nuclei giving off neutrons. These neutrons then hit another nucleus changing it into smaller nuclei and so on. e.g. (chain reaction) feel free to add some more info...
Why are graphite rods used in a nuclear pile?
Graphite is a "moderator" that slows down the fast neutrons which are produced during the fission process. Fast neutrons are captured by uranium-238 atoms removing them from the chain reaction process. Slow "thermal" neutrons avoid uranium-238 atoms and easily split uranium-235 atoms, producing 2 to 3 more neutrons that can continue the chain reaction. For a moderator to be effective it must slow neutrons rapidly (before too many can be captured by uranium-238 atoms and thus removed from the chain reaction). The most effective moderators in decreasing order are: heavy water (D2O), graphite (C), light water (H2O).
When uranium 235 is struck with a neutron the krypton 92 and barium 141 nuclei are produced along with some neutrons how many neutrons are produced?
The average number of neutrons per nuclear fission is 2,5.
