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Why unstable nuclei with short half-lives have small or zero natural abundance?
It should be very clear why nuclei with short half-lives have small or zero natural abundance. They simply are simply too unstable to exist and will decay into a more stable form. Naturally abundant nuclei will have half lives that are longer than the age of the Earth.
How can radioisotopes determine the age of objects?
answ2. Radioisotopes decay at a rate specific to the particular element (and its isotope). Carbon for example has two stable isotopes (C12 and C13), and another half-dozen or so of short-lived ones. C14 is a natural isotope with a half-life of around 5700 years, and is very useful for dating archaeological remains.Tin for example has ten stable isotopes, and up towards 20 radioactive ones.Many other isotopes are used for dating different items, and some even have half-lives in excess of the age of the Earth. For many purposes these may considered as stable.Reverting to the carbon, after 5700 years, there is one-half of the C14 left that there was previously. After 11 400 years there would be a quarter of the original quantity and so on.
Computers can determine the age of an object?
Computers can determine the age of an object through a carbon dating, This is also known as fission-track dating and is commonly used by anthropologists and archaeologists.
What does half life of a pill mean?
A "Half-Life" is not half of a life, it is half of the life, then half of that life, and then half of THAT life, and so on and so on. For example: Rock has a half life of 100 ---> 50 ---> 25 ---> 12.5 ---> 6.25 ---> and so on. You just keep dividing the life it has, by 2. Another Example: If you take a dissolving vitamin, and weigh it (20g), and put it in water for 1 minute, it should dissolve into ALMOST half of its original weight, into 10g. Scientists often use the method of "Half-Life" to measure the age of a rock or rock formation. Sources: Am a student in science class
If an isotope has a half-life of 300 years after what length of time will three quarters of a sample decay?
After 300 years: 50% gone, 50% remaining. After another 300 years: half of the 50% remaining is gone = 25% of the original sample. 25% of the original remains. So, after 600 years, 3/4 is gone, 1/4 remains.
How scientists estimate the age in years of a fossil?
Scientists can use carbon dating to determine the age of a fossil.
Scientists can determine the age of some ancient artifacts usin what dating?
Scientists can determine the age of some ancient artifacts using Carbon-14 Dating.
How do scientists use isotopes to determine the of an object?
Scientists use the relative amount of stable and unstable isotopes in an object to determine its age.
Scientists can determine the age of some ancient artifacts using what dating?
Scientists can determine the age of some ancient artifacts using carbon-14 dating.
How do scientists determine age?
by seeing what levels the fossil go to
. Describe in a few sentences how scientists use radioactivity to determine the age of a rock.?
Scientists use radioactivity to determine the age of a rock through a process called radiometric dating. They measure the amount of radioactive isotopes present in the rock and the rate at which they decay into stable isotopes. By comparing the ratio of parent isotope to daughter isotope, scientists can calculate the age of the rock based on the known half-life of the radioactive isotope.
What does radioactive dating allow scientists to determine?
To know about the age of relics.
How can scientists determine the relative age of rocks and fossils an area?
nunya
Why can and rsquot carbon-14 be used to determine the age of fossils that are several hundred thousand years old?
The half life of C 14 is 5730 years. After a few half lives its useless.
What do scientists use to determine a fossil's relative age?
Carbon14 dating (isotopic dating)
What following is not a method used by scientists to determine the age of ancient remains?
Psychic readings.
How did Apollo landings on the moon help scientists determine the age of the moon?
They brought back samples of lunar rocks so the scientist's could determine the age of the moon.
