There are three natural isotopes of uranium — uranium-234 (U-234), uranium-235 (U-235) and uranium-238 (U-238). U-238 is the most common one, accounting for around 99 per cent of natural uranium found ...

Knowing the energies of the neutrinos, the researchers calculated that the radioactive decay of uranium-238 and thorium-232 contributes about 20 trillion watts to the amount of heat the planet ...

Uranium-234 has a half-life of 245,500 years, but it occurs only indirectly from the decay of U-238. ... The half-life of uranium-238 is 4.5 billion years. It decays into radium-226, ...

Uranium's undoing. Published 1 October 2008. From Elaine Hunter . Oliver Tickell states that minute quantities of depleted uranium lodged in the body “may kick out energetic electrons that mimic ...

Although 20 TW from uranium and thorium is more than the 16 TW predicted by the BSE model, it is still within the experimental uncertainty – and is much less than the total flux of 44 TW. “One thing ...

How did tiny radioactive specks of decay products of uranium end up on one of its instrument covers? ... lead-214 and bismuth-214-both decay products of uranium-238.

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 ...

Uranium comes in two principle forms, or isotopes: uranium 235 and uranium 238. Uranium 238 is the most common uranium isotope, and more stable. When it absorbs a neutron, it usually doesn’t ...

Therefore, fission products of plutonium-239 decay would suggest that low-enriched uranium had been used in the reactor. Many radioactive isotopes are produced by the nuclear fission of both ...

Uranium (chemical symbol U) is a naturally occurring radioactive element. In its pure form it is a silver-coloured heavy metal, similar to lead, cadmium and tungsten. Like tungsten it is very dense, ...