Answer: uranio
Uranium -234 which is a member of the uranium series (the decay chain of uranium -238) decays to lead-206 through a series of relatively short-lived isotopes. Uranium -233 is made from thorium-232 by neutron bombardment usually in a nuclear reactor and 233 U is also fissile.
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Uranium is a heavy metal which has been used as an abundant source of concentrated energy for over 60 years. Uranium occurs in most rocks in concentrations of 2 to 4 parts per million and is as common in the Earth's crust as tin tungsten and molybdenum. Uranium occurs in seawater and can be recovered from the oceans.
Uranium (U) radioactive chemical element of the actinoid series of the periodic table atomic number 92. It is an important nuclear fuel. Uranium constitutes about two parts per million of Earth's crust.
Uranium chemical symbol U is a radioactive chemical element that is essential in producing nuclear fuel. It is silvery-white in color when in its natural form.
Uranium is found in small amounts in most rocks and even in seawater. Uranium mines operate in many countries but more than 85% of uranium is produced i...