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halflife
half life
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The answer HALFLIFE (half life) has 12 possible clue(s) in existing crosswords.
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The word HALFLIFE (half life) is NOT valid in any word game. (Sorry, you cannot play HALFLIFE (half life) in Scrabble, Words With Friends etc)
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Definitions of half life in various dictionaries:
noun - the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate)
The time required for half the nuclei in a sample of a specific isotopic species to undergo radioactive decay.
Biology.
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Keep reading for additional results and analysis below.
| Possible Jeopardy Clues |
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| For the radioactive element Thorium, it's about 14 billion years |
| This measure is used for radioactive decay because the time for all atoms to break down is unknowable |
| The time it takes for 50% of a given amount of a radioactive element to decay |
| Term for the time it takes a radioactive substance to decay to 50% of its original quantity |
| For the radioactive isotope Actinium-227, it's 21.8 years |
| The time it takes for 50% of the atoms to decay in a radioactive substance is called this |
| For thorium-234 it's about 25 days; for thorium-232, about 14 billion years |
| Term for the time it takes 50% of the nuclei of a sample of radioactive material to decay |
| It's defined as the time required for 50% of the atoms of a radioactive substance to decay into another substance |
| Half life might refer to |
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| Half-life (symbol t1⁄2) is the time required for a quantity to reduce to half of its initial value. The term is commonly used in nuclear physics to describe how quickly unstable atoms undergo, or how long stable atoms survive, radioactive decay. The term is also used more generally to characterize any type of exponential or non-exponential decay. For example, the medical sciences refer to the biological half-life of drugs and other chemicals in the human body. The converse of half-life is doubling time. * The original term, half-life period, dating to Ernest Rutherford's discovery of the principle in 1907, was shortened to half-life in the early 1950s. Rutherford applied the principle of a radioactive element's half-life to studies of age determination of rocks by measuring the decay period of radium to lead-206. * Half-life is constant over the lifetime of an exponentially decaying quantity, and it is a characteristic unit for the exponential decay equation. The accompanying table shows the reduction of a quantity as a function of the number of half-lives elapsed. |