What is the difference between the isotopes uranium 234 and uranium-235?

The key difference between Uranium 234 235 and 238 is that Uranium 234 contains 142 neutrons and Uranium 235 contains 143 neutrons, whereas Uranium 238 contains 146 neutrons. Uranium is a heavy metal. It is an abundant source of energy that has been used for about 60 years.

How does uranium-234 differ from uranium-238?

The U-238 isotope is the longest lived with a half-life of 4.5 billon years and constitutes more than 99\% of the mass of natural uranium and half of its radioactivity. Uranium-234, a decay product of U-238, is responsible for nearly all the remainder of the radioactivity of natural uranium.

Why is uranium always unstable?

Uranium has 92 protons and either 143 or 146 neutrons, for uranium-235 and uranium-238 respectively. Nuclei with that many protons are always unstable (in fact, any nuclei heavier than lead are always radioactive).

Why does uranium-235 have a long half-life?

Uranium-235 has a half-life of 703.8 million years. It was discovered in 1935 by Arthur Jeffrey Dempster. Its fission cross section for slow thermal neutrons is about 584.3±1 barns. For fast neutrons it is on the order of 1 barn….Nuclear weapons.

Source	Average energy released [MeV]
Energy of anti-neutrinos	8.8
Sum	211.3

Why is uranium-235 better than uranium-238?

U- 235 is a fissile isotope, meaning that it can split into smaller molecules when a lower-energy neutron is fired at it. U- 238 is a fissionable isotope, meaning that it can undergo nuclear fission, but the neutrons fired at it would need much more energy in order for fission to take place.

Why does uranium-235 weigh more than uranium 234 What’s different about the two atoms?

The difference between the three isotopes is the number of neutrons present in the nucleus. U-238 has 4 more neutrons than U-234 and three more neutrons than U-235. Natural uranium consists of a mixture of various isotopes, primarily U-238 and a much smaller amount (about 0.72\% by weight) of U-235.

Why is uranium 238 the most common isotope of uranium?

Uranium-238 (238U or U-238) is the most common isotope of uranium found in nature, with a relative abundance of 99\%. Unlike uranium-235, it is non-fissile, which means it cannot sustain a chain reaction in a thermal-neutron reactor….Uranium-238.

General
Symbol	238U
Names	uranium-238, U-238
Protons	92
Neutrons	146

What is the half-life of uranium 214?

about 0.52 milliseconds
The researchers watched those nuclei decay and determined that the half-life of uranium-214 – the length of time until half of a given sample of particles has decayed radioactively – is about 0.52 milliseconds.

What is the half-life of uranium 234?

about 25 thousand years
The half-life of uranium-238 is about 4.5 billion years, uranium-235 about 700 million years, and uranium-234 about 25 thousand years.

Does uranium have a stable isotope?

The most stable isotope of uranium, U-238, has an atomic number of 92 (protons) and an atomic weight of 238 (92 protons plus 146 neutrons). The isotope of uranium of greatest importance in atomic bombs, U-235, though, has three fewer neutrons.

What is the half-life of uranium-234?

What is the half-life of uranium 233?

160,000 years
It has a half-life of 160,000 years. Uranium-233 is produced by the neutron irradiation of thorium-232….Uranium-233.

General
Protons	92
Neutrons	141
Nuclide data
Half-life	160,000 years

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