It is impossible to know exactly this value; probably approx. 5.109 tons. But only a very small part of this quantity is economically to extract today.
In nature, uranium is found as uranium-238 (99.284%), uranium-235 (0.711%),[4] and a very small amount of uranium-234 (0.0058%)
Uranium 238 is transformed in thorium 234 by alpha decay.
Uranium is a member of the actinoids family elements. Uranium-238 is a natural isotope of uranium.
Isotopes Uranium 235 and uranium 238 are only natural isotopes of the element uranium.
It is a naturally occurring isotope of Uranium making 0.72% of total naturally found Uranium. Since, it is very less in nature, therefore it is sometimes made from Uranium-238 in nuclear reactors.
Uranium-235 is found in nature at about 0.7% concentration to uranium-238.
The most common uranium isotope found in nature is Uranium-238. This particular isotope is mostly used in nuclear weapons and as the fuel supply for nuclear power.
In nature, uranium is found as uranium-238 (99.284%), uranium-235 (0.711%),[4] and a very small amount of uranium-234 (0.0058%)
Uranium 238 is transformed in thorium 234 by alpha decay.
Uranium is a member of the actinoids family elements. Uranium-238 is a natural isotope of uranium.
Isotopes Uranium 235 and uranium 238 are only natural isotopes of the element uranium.
Uranium-238 has 146 neutrons.
The half life of 238U is 4,468.109 years; this is a very long halflife !
Uranium 238 has 146 neutrons.
It is a naturally occurring isotope of Uranium making 0.72% of total naturally found Uranium. Since, it is very less in nature, therefore it is sometimes made from Uranium-238 in nuclear reactors.
Uranium-238 and uranium-234 are not "elements", but they are natural isotopes of the chemical element uranium. The atoms are neutral.
Uranium-235 has 143 neutrons, uranium-238 has146 neutrons.