0
They don't.
Carbon-14 has a short half-life and is normally only used by archaeologists or anyone working on sediments less than 50,000 years old. It becomes much less accurate after 40,000 years.
Scientists used many different isotopes for dating rocks in Radiometric Dating, uranium/lead, potassium/argon and others are used. The half-life in some of these isotopes is measured in millions or billions of years.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoIt is not used for "carbon dating". Both U-238, and C-14 (radiocarbon, for carbon dating) are used to estimate the age of certain types of matter. These atoms decay, and from the amount of atoms remaining, an estimate of the age can be made.
Wiki User
∙ 14y agoYes, see for details at: http://en.wikipedia.org/wiki/Uranium-lead_dating.
Wiki User
∙ 16y agoUranium-238's decay product uranium 238 has a halflife of 246,000 years and so is useful for determining the age of sediments that are between 100,000 years and 1,200,000 years in age.
Wiki User
∙ 8y agoIt isn't Carbon is used to measure the age of rocks.
Wiki User
∙ 12y agoUranium 235 and uranium 238 are used in radiometric methods for dating of geological samples.
Add your answer:
Earn +20 pts
Uranium -235 and uranium -238 are different of uranium?
Isotopes Uranium 235 and uranium 238 are only natural isotopes of the element uranium.
What is uranium 235 when added to natural uranium?
Uranium-235 is not added to natural uranium, it is extracted from natural uranium by a process called enrichment.
What are 3 benefits of uranium 235?
Uranium 235 is a fissile material under thermal neutrons: - uranium 235 is used as a nuclear fuel in nuclear energetic reactors - uranium 235 can be used in nuclear bombs
What 2 radioactive elements were chosen for the atomic bomb?
Uranium and Plutonium
Most nuclear power plants use what as a nuclear fuel?
Uranium enriched with isotope 235 to approx 4 percent (natural U is 0.7 percent 235)
How do geologists measure the precise age of earth?
There are a few ways. First they use uranium 235 to date the oldest rocks. U 235 is radioactive so it has a half life that can be meaured.
Uranium-235 is used to fuel nuclear power plants What is the main use of uranium-235?
That is the main use, to fuel nuclear power plants
What is the percentage of uranium-235?
Uranium-235 is an isotope of uranium making up about 0.72% of natural uranium.
What letter would a chemist use in front of 235 or 238?
U from uranium235U and 238U (recommended); also possible U-235 and U-238 or uranium-235 and uranium-238.
What percentage of mined uranium is 235?
Approx. 0,7 % uranium 235 in natural uranium.
Uranium -235 and uranium -238 are different of uranium?
Isotopes Uranium 235 and uranium 238 are only natural isotopes of the element uranium.
What is uranium 235 when added to natural uranium?
Uranium-235 is not added to natural uranium, it is extracted from natural uranium by a process called enrichment.
What fuel does a nuclear reactor use?
Uranium-235 in combination with Uranium-238, enriched from natural levels of about 0.7% U-235 to about 5% U-235. There are other configurations, but this is the most common.
What are 3 benefits of uranium 235?
Uranium 235 is a fissile material under thermal neutrons: - uranium 235 is used as a nuclear fuel in nuclear energetic reactors - uranium 235 can be used in nuclear bombs
What 2 radioactive elements were chosen for the atomic bomb?
Uranium and Plutonium
Most nuclear power plants use what as a nuclear fuel?
Uranium enriched with isotope 235 to approx 4 percent (natural U is 0.7 percent 235)
If the fossil is to old to use uranium 235 dating?
Uranium dating methods were not used for fossils dating.
