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Half-Life or previously known as Half-Life Period is one of the common terminologies used in Physics to describe the radioactive decay of a particular sample or element within a certain period of time. Students of nuclear Physics will come across the term often while studying the subject.
Half-life (symbol t½) is the time required for a quantity (of substance) to reduce to half of its initial value. The term is commonly used in nuclear physics to describe how quickly unstable atoms undergo radioactive decay or how long stable atoms survive.
Half-life, in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay, or, equivalently, the time interval required for the number of disintegrations per second of a radioactive material to decrease by one-half.
The half-life of a chemical reaction can be defined as the time taken for the concentration of a given reactant to reach 50% of its initial concentration (i.e. the time taken for the reactant concentration to reach half of its initial value).
3 days ago · Half-life definition: The time it takes for half the atoms of an unstable element or nuclide to decay radioactively into another element or nuclide. For a given reaction, a reactant's half-life t1/2 is the time it takes for its concentration to reach a value which is the arithmetic mean of its initial and final (equilibrium) value.
Feb 20, 2022 · The time in which half of the original number of nuclei decay is defined as the half-life \(t_{1/2}\). Half of the remaining nuclei decay in the next half-life. Further, half of that amount decays in the following half-life.
Jun 26, 2023 · Describe what is meant by the term half-life and what factors affect half-life. Calculate the amount of radioactive material that will remain after an integral number of half-lives. Calculate the age of a material based upon its half-life.
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. Each radioactive nuclide has a characteristic, constant half-life ( t1/2 ), the time required for half of the atoms in a sample to decay.
Jan 30, 2023 · This period of time is called the half-life of the reaction, written as t 1 /2. Thus the half-life of a reaction is the time required for the reactant concentration to decrease from [A] 0 to [A] 0/2 .
The radioactive half-life for a given radioisotope is the time for half the radioactive nuclei in any sample to undergo radioactive decay. After two half-lives, there will be one fourth the original sample, after three half-lives one eight the original sample, and so forth.
