answersLogoWhite

0


Want this question answered?

Be notified when an answer is posted

Add your answer:

Earn +20 pts
Q: What isotope of uranium is fissionable?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Natural Sciences
Related questions

Isotope of uranium used in nuclear reactors?

Uranium 235 is the most important isotope of uranium; it is a fissionable isotope used in HWR, PWR, BWR, research reactors and other types of reactors. But it is rare, only 0.72% of natural Uranium is this isotope.The more plentiful Uranium 238 isotope is only fertile not fissionable; it can only be used in fast reactors to breed Plutonium, which is fissionable. Isotopes of plutonium 239Pu and 241Pu are highly fissionable and importants for nuclear fuels.


What make Uranium fission?

Uranium (especialy the fissile isotope) 235U is fissionable by bombardments with thermal neutrons.


What fuel is used during nuclear fission?

Certain fissionable materials, usually a uranium or plutonium isotope.


What does it mean if an isotope is fissionable?

It means the nucleus will fission or split into two halves (or near halves). Most frequent example is Uranium-235


Why is it necessary to enrich the uranium before manufacturing the fuel pellets?

Natural uranium is only 0.72% fissile uranium-235 isotope. This is only fissionable when using heavy water as the moderator to slow the fission neutrons. With any other moderator you need 3% to 5% uranium-235 isotope. For unmoderated fast neutron reactors like breeders you need 20% to 95% uranium-235 isotope.


Why uranium is the best element in nuclear fusion?

Uranium is fairly easy to obtain, and the 235 isotope can be separated or increased, which is the fissile one. The only alternative is plutonium, and that has to be separated out from used uranium fuel. In some countries, but not the US, this has been done and a mixed uranium/plutonium fuel produced.


Why do nuclear reactors require a fissionable isotope?

The fissionable isotope is required for the nuclear reactor operation. The fissionable isotope when fissions it give energy due to the mass difference according to Einstein formula E = mc2


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.


Why does a chain reaction not occur in uranium mines?

Mainly because only about 0.7% of uranium is the isotope uranium-235, which is easily fissionable. It is believed that in Earth's remote past, there were such chain reactions - natural reactors - at a time when the percentage of U-235 was higher.


What is the main use of isotopes of uranium?

235U is a fissionable isotope and 238U is a fertile isotope; these isotopes are extremely important in the production of nuclear energy. Also uranium is used by the United States, United Kingdom and Russia to threaten with nuclear bombs the other countries, without nuclear weapons.


Which uranium is used for nuclear power production?

U-235 is the fissionable isotope that produces the power. Reactor fuel usually contains about 5% of this, the rest being U-238


Why does uranium give out alpha particles?

Uranium-238 is fissionable. Its just not what we call fissile, which has the added definition of, when fissioned, producing neutrons that can go on to fission more atoms. Uranium-238 is more correctly called fertile, which means that a neutron can transmute it into another isotope, such as plutonium-239, which is fissionable and fissile.Uranium-235, on the other hand, is both fissionable and fissile.