The half-life of a radioactive isotope is the amount of time it takes for one-half of the radioactive isotope to decay. The half-life of a specific radioactive isotope is constant; it is unaffected by conditions and is independent of the initial amount of that isotope.
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How is the half life of an isotope defined?
The half life of an isotope is defined by the amount of time it takes for half of the parent isotope to decay into its daughter isotope.
Isotope A has half-life of seconds and isotope B has a half-life of millions of years which isotope is more radioactive?
Isotope A
Does the half-life of a radioactive isotope decrease as the isotope decays?
No, the half-life of a radioactive isotope does not decrease as the isotope decays. That half-life remains constant. It's the amount of the substance that decreases as the isotope decays.
What is the half life of isotope tritium?
12.3 years is the half life of the isotope tritium.
What do isotope and half life have in common?
Each (unstable) isotope has a distinctive half-life.
Is it true that the half life of a radioactive isotope decreases as the isotope decays?
It is false. The half-life of a radioactive isotope is constant.
True or false- The half-life of a radioactive isotope decreases as the isotope decays?
false, half life of a given isotope is a constant.
What is the 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.
What fraction of an original sample of a radio isotope remains after half-life periods?
Half of the original sample of a radio isotope remains after a half-life period. After two half-life periods, one-fourth of the radio isotope remains.
The half-life of a radioactive isotope decreases as the isotope decays?
No, the half life remains exactly the same throughout
What is the half life of isotopes?
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.
What is a half-life for elements?
A half-life for a radioactive element or isotope is the amount of time it takes for exactly half of a sample of that element or isotope to decay.
What is half -life of an isotope?
The time it takes for half of the amount of a given sample of the isotope to decay.
The half-life of a radioactive isotope is?
The time depends on the isotope. The half life of uranium-238 is about 4.47 billion years and that of uranium-235 is 704 million years. The half life is the amount of time during which any given atom of the isotope has a 50% chance of undergoing decay. Seen another way, the half life is the time it takes for half the atoms of an isotope in a mass of that isotope to undergo decay.
The half-life of an element is important for?
The half-life of an isotope is how long it takes for half of the atoms in a mass to undergo radioactive decay. Say you have 40g of an elements isotope with a half-life of one year. After 1 year, there would be 20g of that isotope left, and 20g of a different isotope/element. After 2 years, there would be 10g, and so on...
What affects the half life?
The type of isotope
If the half-life of a radioactive substance is 10 hours how long will it take for 50 percent of it to decay?
The half-life of a radioactive isotope is defined as the time taken for the isotope to decay to half of its initial mass. So to decay to 50 percent of its initial mass will take one half-life of the isotope. One half-life of the isotope is 10 hours so the time taken to decay is also 10 hours.
After 36.9 years a sample of hydrogen contains one-eighth the amount it contained originally what is the half-life of the isotope?
The half-life of the isotope is 12.3.
What is the half life of radioactive isotope?
The half life is the period of time it takes radioactive decay to transmute one half of the isotope present at the start of the period to a different isotope, usually an isotope of a different element. This period of time is different for different isotopes, with known isotope half lives ranging from femtoseconds to many billions of years.
What property of a radioactive isotope is the length of time it takes half of the nuclei to decay?
This is called the "half-life" of the isotope.
What is the half life of an unstable isotope?
It is the time in which a number of unstable isotope nuclei reduces to half its original number.
Would this method for determining half-life work for an isotope that has a half-life of 4.2 years?
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What is the difference between a radioactive isotope and a stable isotope?
A stable isotope will not decay. A radioactive isotope is expected to decay over time and the term "half-life" describes the time period in which it will happen. Given a mole of radioactive atoms, half will have decayed in the half-life, then a half of the remaining will decay in the next half-life period, and so on. There is no predicting for any particular atom, we must simply treat it as a matter of probability.
What does the half-life of a radioisotope give?
The half life is the time when 50 % of the atoms of an isotope disintegrate.
The amount of time required for a half a sample of a radioactive isotope to decay?
That's called the "half-life" of that particular isotope.
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