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Q: What does the 235 mean in U-235?
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Is u235 stable?

No, uranium-235 (U-235) is not stable. It is a radioactive isotope that undergoes radioactive decay, emitting particles and energy in the process.


How many neutrons are in Element 92?

Element number 92 is Uranium and there are two main isotopes - U235 and U238. In U235 there are 92 protons so there are 235 - 92 = 143 neutrons. In U238 there are thus 146 neutrons


Is uranium 235 a state in which matter flows as it takes the shape of a container?

The question is asking if U235 a liquid or a gas. It is a solid and does not flow.


Is the uranium-235 isotope the most commonly used fuel in fission power plants?

Yes, uranium-235 is the most commonly used isotope for nuclear fuel in fission power plants due to its ability to sustain a nuclear chain reaction. It undergoes fission when bombarded with neutrons, releasing energy that is harnessed for electricity generation.


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).


How much U235 is needed for a nuclear bomb?

U-235 18.4Kg (a sphere 12.6cm diameter) will do, probably less.P-239 6.4Kg (a sphere 9.2cm diameter) will do, probably less.Nucleonics Fundamentals, McGraw Hill 1959, page 313


What is the multiple of 235?

if you mean lcm of 2,3 and 5 it is 30. If you mean multiples of 235, it is 235, 470, 705, 940, 1175, 1410 etc


What is the arithmetic mean in 175 between 235?

arithmetic mean is the average (175+235) / 2 = 205


What are the relative amounts of U-238 and U-235 found in fuel rods?

It depends on the type of reactor you're using. For light-water reactors, the most common type of reactor, the ratio of U235/U238 is usually around 3.5%.


Why is large mass of uranium-235 needed for a chain reaction?

Each time a U235 atom decays, it emits 2-3 neutrons. The likelihood that one of these neutrons is captured by another U235 atom INCREASES with more mass. The SHAPE of this mass will also play a role, imagine a thin wire of U235, compared to a sphere, with regards to how likely a chain reaction will occur. Neutron reflection can also help redirect an errant neutron back into the mass so it can react instead. Compression (increase of density) plays a role as well.


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 is upper sub-critical limit for U235 mass?

The critical mass depends on the shape; I don't think there is an upper limit to that.For the case of a sphere, the critical mass for U-235 is 52 kg. The corresponding diameter of the sphere is 17 cm.