The half life of 238U is 4,468.109 years; this is a very long halflife !
Uranium 238 is the most common isotope of uranium found in nature, it is a fertile material. The sample size does not affect the half life.
The approximate half life of Uranium 238 is 4.5 x 109 years.
Uranium 238 is a natural isotope of uranium, non-fissionable with thermal neutrons, with an atomic mass of 238,050 788 247 ± 0,000 002 044 u.a. and a half life of 4,468 x 109 years, atomic number 92. Natural uranium contain 99.2745 % U 238 (atomic); the desintegration of U 238 is alpha type.
The half life of the radioactive isotope of iodine comes into play when it is being prescribed as treatment for some thyroid conditions. In order for the material to be of the correct strength, it has to be prepared, delivered and administered at just the right time.
constant half-life
uranium 238 is a fast neutron absorber the answer is correct but for more explanation:- when uranium 238 is bombard by neutron >>> uranium 238 , undergoes B decay>>>Np 239 ,undergoes B decay >>> Pu 239 finally undergoes alpha decay >>> fissile U
The approximate half life of Uranium 238 is 4.5 x 109 years.
The half-life of the isotope uranium-238 is 4 468 000 000 years.
The half-life of 238U is 4.468x109 years.
This is an alpha decay.The half-life of uranium-238 is 4,468.10ex.9 years.
4.47 billion years
The half-life of 238U is 4,468x109 years.
The resulting isotope is uranium 239 with a half life of 23.5 minutes (beta desintegration).
Alpha disintegration: (4,470 ± 0,020) 109 years Spontaneous fission: (8,20 ± 0,10) 1015 years
12.5 %
4.47 billion years
703, 800,000
There is no isotope of Uranium 206 - Uranium 217 is the lightest.