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Which part of an atom participates in the reaction shown below U235 plus n and acirc and 134 and 146 Xe134 plus Sr100 plus 2n?
The nucleus of the Uranium-235 (U235) atom participates in the nuclear reaction by absorbing a neutron (n) to form an unstable compound nucleus, which then undergoes fission into Xe134, Sr100, and two neutrons (2n).
The concentration of U235 in the atomic bomb?
The references I have state Oralloy is 93.5% U235. Oralloy (Oak Ridge Alloy) was used in US Uranium atomic bombs as the fissile material. However they also say that any enrichment 20% U235 or higher is fissile and could be used to make a bomb, it would require a higher critical mass to work though. One source I have states that early Soviet Uranium atomic bombs used ~97% U235, but the US felt this level of enrichment to be unnecessary and excessively expensive.
What term is use to describe splitting a large atomic nucleus into smaller ones?
Nuclear fission is defined as splitting large nuclei into smaller ones.
The splitting of a heavy nucleus is called?
The splitting of a heavy nucleus is called nuclear fission. This process releases a large amount of energy and is the principle behind nuclear power plants and nuclear weapons.
The splitting of an atom nucleus into smaller nuclei is called?
Neclear fission
Where does the nuclear enengy come from?
It comes from the fission of certain nuclei, mostly U235 and Pu239. Every fission of a nucleus of an atom of these materials releases a certain amount of energy as heat.
What is the best way at producing electricity?
in order,- Fission, (u235) Fusion, (d-t) Fusion (sun) Antimatter, Zero point energy.
The atoms that remain after a nucleus disintegrates is?
smaller then the original atom and possibly radioative
One valuable characteristic of fission is the amount of energy released foe each disintegrating atom is?
Each fission of U235 releases 200 Mev (200 million electron volts) which in terms of Joules is 3.2 x 10-11 Joules
Is the uranium-235 isotope the most commonly used fuel in fission power plants?
Yes U235 is the fissionable isotope of Uranium. Natural Uranium contains only about 0.7 percent U235, which is enough to produce fission only with a good moderator such as graphite or heavy water. In light water reactors the Uranium has to be enriched to about 4 percent U 235.
Which part of an atom participates in the reaction shown below U235 plus n and acirc and 134 and 146 Xe134 plus Sr100 plus 2n?
The nucleus of the Uranium-235 (U235) atom participates in the nuclear reaction by absorbing a neutron (n) to form an unstable compound nucleus, which then undergoes fission into Xe134, Sr100, and two neutrons (2n).
What is meant by reactor grade materials?
This means that the nuclear material is of a high enough concentration to fissile (allow for a fission chain reaction). This is because Uranium comes naturally as 99.3% U238, which cannot sustain fission, and .7% U235, which is what they want for the fuel. So they have to find away to pull away the U238 and leave the U235. As they concentrate the U235, it becomes concentrated enough so that it can sustain fission (too much U238 bogs down the reaction and will eventually end the fission). When it reaches this point of concentration, it is concidered reactor grade. Different elements have different needed concentrations to reach this level.
What is oralloy?
Oralloy is an acronym for "Oak Ridge Alloy". Which is an alloy of Uranium 235 and Uranium 238. The U235 is the fissile isotope that is used in fission type nuclear weapons. The actual concentration is classified, but generally U235 is greater than 90%.
What amount of energy is produced during nuclear fisson?
Each fission of a U235 nucleus produces 200 Mev which in terms of Joules is 3.2 x 10-11 Joules. This is a very small amount, which shows just how many fissions are occurring every second, for a reactor which produces 3000 Mw thermal
What are the Specifications for uranium used in nuclear power plants?
The uranium is in the form of uranium dioxide, UO2, which is produced in small cylinders and assembled inside a zircaloy sealed sheath. The individual zircaloy tubes filled with uranium are then made up into a fuel assembly, the number in each assembly varies from one design to another. The uranium itself is enriched to about 4 percent U235. Natural uranium has about 0.7 percent U235, which is the isotope required for slow neutron fission.
What are the example of nuclear fission?
The only example of nuclear fission in a naturally occurring material is of Uranium 235, which comprises 0.7 percent of natural uranium, the rest being Uranium 238 which is not fissile. To use U235 in a nuclear reactor it is usually enriched to about 4 percent first, though reactors have been designed to use natural uranium. These have to use graphite or heavy water as moderator, as normal water absorbs too many neutrons. During reactor operation some of the U238 absorbs a neutron and becomes Plutonium 239 which is also fissile, so this contributes to a proportion of the reactor power which increases as the fuel is used and the U235 diminishes.
Write a balanced nuclear equation for the fission of U235 by a neutron producing Br87 La146 and several neutrons?
235 92U + 1 0n ! 87 35Br + 146 57La + 3 1 0n
