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The time it takes for half the sample to decay is called the half-life.The time it takes for half the sample to decay is called the half-life.The time it takes for half the sample to decay is called the half-life.The time it takes for half the sample to decay is called the half-life.
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).
It's the time it takes for half of the atoms of a given sample of a radionuclide to decay.
The time it takes for half the atoms in a sample of a radioactive element to decay is called the half life.
The length of time it takes for half of a radioactive sample to decay
See the link below for half lives of rutherfordium isotopes.
Not all isotopes have a half life: many are stable. The concept is applicable only for radioactive isotopes. Atoms of radioactive isotopes "decay" into other atoms. The probability that a particular atom decays in any given time period is constant and so the process is an exponential one which depends on the overall rate and the number of atoms which are available for decay. The half life for an isotope is the period after which half the atoms have decayed.
The half-life
The half-life
The half-life
It really applies to radioactive isotopes, not elements. An element may have different isotopes, some of which are radioactive, some not.The half-life is the time it takes for half of a sample to decay - for the atoms to convert to some other type of atom.
In any radioactive substance, individual atoms will decay randomly. There is no way to know exactly when any particular atom will decay. On average and in broad terms, however, we can predict how many atoms will decay in any given period of time, and this time varies with the isotope involved. The "half-life" of a radioactive substance is the time that it will take for half of the atoms to decay. Very radioactive isotopes will decay quickly and will have very short half-lives; slightly radioactive isotopes will decay slowly and have long half-lives.
The time it takes for half the sample to decay is called the half-life.The time it takes for half the sample to decay is called the half-life.The time it takes for half the sample to decay is called the half-life.The time it takes for half the sample to decay is called the half-life.
The half-life
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).
No. Nuclear fusion is the process by which 4 hydrogen atoms are fused into a single helium atom, releasing huge amounts of energy. This is the process that powers our sun. Radioactive decay of isotopes is described by the concept of the half life. The half life of an isotope is the time it takes for 1/2 of a sample of that isotope to decay into a daughter product.
The half-life of an isotope is the time it takes for half of the atoms of a sample to decay.