The half-life of 238U is 4.468x109 years.
The half-life of uranium-235 is approximately 703.8 million years, while the half-life of uranium-238 is approximately 4.5 billion years.
The most common form of uranium is uranium-238, which has a half-life of about 4.5 billion years. This means that it takes 4.5 billion years for half of a sample of uranium-238 to decay into lead-206.
This is an alpha decay.The half-life of uranium-238 is 4,468.10ex.9 years.
Radioactivity can persist on uranium for billions of years, as uranium has a very long half-life. The most common isotope of uranium, uranium-238, has a half-life of about 4.5 billion years. Uranium-235, another isotope, has a shorter half-life of about 700 million years.
It takes billions of years for uranium to decay into lead. Uranium-238, the most common isotope of uranium, has a half-life of about 4.5 billion years, meaning it takes that long for half of a sample of uranium-238 to decay into lead-206.
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 uranium-235 is approximately 703.8 million years, while the half-life of uranium-238 is approximately 4.5 billion years.
The most common form of uranium is uranium-238, which has a half-life of about 4.5 billion years. This means that it takes 4.5 billion years for half of a sample of uranium-238 to decay into lead-206.
Uranium
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.
Radioactivity can persist on uranium for billions of years, as uranium has a very long half-life. The most common isotope of uranium, uranium-238, has a half-life of about 4.5 billion years. Uranium-235, another isotope, has a shorter half-life of about 700 million years.
It takes billions of years for uranium to decay into lead. Uranium-238, the most common isotope of uranium, has a half-life of about 4.5 billion years, meaning it takes that long for half of a sample of uranium-238 to decay into lead-206.
Uranium-238 has a half-life of about 4.5 billion years. The Earth is estimated to be about 4.5 billion years old, so if uranium-238 crystallized at the same time the Earth formed, it would have undergone approximately one half-life since then. This means that about half of the original amount of uranium-238 would remain today.
Alpha disintegration: (4,470 ± 0,020) 109 years Spontaneous fission: (8,20 ± 0,10) 1015 years