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What is half-life as it applies to rocks and fosils?
I believe that the half-life refers to the amount of carbon in it. By knowing the half-life of carbon it can be used to say how old something is. Ofcourse plus or minus a few years. This is where carbon dating comes from. Hope this helps. EDIT: the half-life refers to the time it takes for an element to decay into its daughter element
What do scientists call the time it takes for half of the radioactive atoms to change into daughter elements?
Scientists refer to the time it takes for half of the radioactive atoms to change into daughter elements as the half-life of the radioactive substance.
What is the time needed for half of a radioactive isotope to break down to form daughter isotope?
It's called "half life".
What is the half-life of Rb-87?
In my reference RB87 is stable, or has a half life of at least 4.9x1010 years.
Do isotopes determine the size or age of a rock?
Isotopes can be used to determine the age of a rock through radiometric dating, but they do not determine the size of the rock. By measuring the ratio of parent and daughter isotopes in a rock sample, scientists can calculate its age based on the rate of radioactive decay.
To use radioactive dating for a substance you must know the substances?
decay rate and initial amount of parent and daughter isotopes. By measuring the current ratio of parent to daughter isotopes in the substance, you can calculate how much time has passed since the radioactive decay began.
A half - life of an element is important for determining the what of a rock?
The age of the rock. By measuring the amount of parent and daughter isotopes in a rock sample and knowing the half-life of the radioactive element, scientists can calculate the age of the rock.
What is half-life as it applies to rocks and fosils?
I believe that the half-life refers to the amount of carbon in it. By knowing the half-life of carbon it can be used to say how old something is. Ofcourse plus or minus a few years. This is where carbon dating comes from. Hope this helps. EDIT: the half-life refers to the time it takes for an element to decay into its daughter element
What do scientists call the time it takes for half of the radioactive atoms to change into daughter elements?
Scientists refer to the time it takes for half of the radioactive atoms to change into daughter elements as the half-life of the radioactive substance.
If a radioactive isotope in a rock has a half-life of 10000 years and the ratio of radioactive parent to stable daughter is 1 to 3 how old is the rock?
At the time the rock is created, the radioactive isotope is present in that rock in a ratio of 1 to zero with regard to the stable daughter. After one half-life, which is 10,000 years, the isotope to daughter ratio is 1 to 1. After another half-life, which is another 10,000 years, the ratio is 1 to 3. The rock is 20,000 years old.To see it another way, after the first half-life is complete, half the material is the original isotope, and half is the daughter. That's a 1 to 1 ratio. After another half-life (another 10,000 years) has passed, half the original isotope that was left has become the daughter. That's one quarter more of the daughter that will be added to the quantity of the daughter existing after the first half-life. That means that one quarter of the original isotope will be left after 2 half-lives, and the rest (the other 3/4ths of the material) will be the daughter. The ratio of the original isotope to the daughter after 2 half-lives (20,000 years) is 1 to 3.
Which procedure is based on the half-life of a radioisotope?
radiating to kill cancer cells
Why is radioactive decay measured in half lifes?
The half-life forms a type of clock used to calculate time passed.
What is the term for the time required for half of a parent isotope to decay into a daughter product?
it's half life
What does the half-life of a radioisotope represented?
It represents the time it takes for half of the material to decay to a daughter element.
Why is half life a radioisotope important for radioactive dating?
the half life forms a type of clock used to calculate time passed
What is the time needed for half of a radioactive isotope to break down to form daughter isotope?
It's called "half life".
How do you calculate the age of a bone when half-life is known?
To calculate the age of a bone using its half-life, you first determine the amount of the radioactive isotope remaining in the bone compared to the original amount. Then, you use the half-life of the isotope to find out how many half-lives have elapsed, which can be calculated using the formula: ( \text{Age} = \text{Half-life} \times n ), where ( n ) is the number of half-lives. By knowing how much of the isotope remains, you can calculate ( n ) using logarithmic functions to solve for the age of the bone.
