0
What is the sample of the radioactive isotope 131I decays its half-life?
Wiki User
∙ 13y ago
Iodine-131 has a half-life of about 8 days.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
How long will it take half of a radioactive sample to decay?
The length of time depends on the element and isotope, but the point at which half of the sample has decayed is known as the half-life.
The time it takes for 50 percent of the nuclei in a radioactive sample to decay to its stable isotope is called?
the half-life
What does the half life of a radioisotope represent?
It tells what fraction of a radioactive sample remains after a certain length of time.
As a sample of a radioactive element decays its half-life?
No, the half life remains exactly the same throughout
What is the longest radioactive halflife?
First, it isn't very accurate to talk about a radioactive "element"; you should talk about radioactive isotopes. Different isotopes of the same element can have very different behavior in this sense. For example, hydrogen-1 and hydrogen-2 are stable, while hydrogen-3 is not (half-life about 19 years).Individual atoms, in a radioactive isotope, will decay at a random moment. The half-life refers to how long it takes for half of the atoms in a given sample to decay (and convert to some other type of isotope).
What is the time needed for half of a sample of a radioactive isotope to break down to form daughter isotopes called?
halflife
How does the length of the half-life of the element correspond to the radioactivity of the element?
The length of time required for half of a sample of radioactive material to decay
How long will it take half of a radioactive sample to decay?
The length of time depends on the element and isotope, but the point at which half of the sample has decayed is known as the half-life.
What is half life of a isotope?
The half life of an isotope refers to the rate at which a radioactive isotope undergoes radioactive decay. Specifically, it is the amount of time it takes for half of a given sample of a radioactive isotope to decay.
The time required for half of a sample of a radioactive isotope to break down by radioactive decay to form a daughter isotope.?
its called Half-Time...
If the isotope have short half lives is that mean that the isotope is in a stable condition?
No. Only radioactive elements have half-lives, the half-life is the time that it will take for half of the atoms in a sample of a radioactive isotope to decay into another element or isotope. This is a constant property of the isotope and does not depend on the sample size. Stable isotopes never decay.
How do you identify beta decay?
A sample of 187 rhenium decays to 187-omium with halflife of 41.6 billion years. If all 188 osmium are normalized isotopes.
What is the use of measuring the activity of a radioactive isotope in a sample to determine its age?
radioactive dating
What is the time required for half of a sample of radioactive isotope to break down?
This time is called "half life" and is specific for each isotope.
. If the half-life of an unstable isotope is 10000 years and only 18 of the radioactive parent remains in a sample how old is the sample?
30,000
The time it takes for 50 percent of the nuclei in a radioactive sample to decay to its stable isotope is called?
the half-life
Determine the amount of time it takes for three fourths of a radioactive sample of an isotope of bromine to decay the half-life of the isotope is 16.5 hours?
About 33 hours
