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.
Radio active
It is simply the duration methadone remains active in your system. It does not necessarily refer to just the euphoric effects. AS you probably know, methadone has the longest half-life of all synthetic opiates.
A "Half-Life" is not half of a life, it is half of the life, then half of that life, and then half of THAT life, and so on and so on. For example: Rock has a half life of 100 ---> 50 ---> 25 ---> 12.5 ---> 6.25 ---> and so on. You just keep dividing the life it has, by 2. Another Example: If you take a dissolving vitamin, and weigh it (20g), and put it in water for 1 minute, it should dissolve into ALMOST half of its original weight, into 10g. Scientists often use the method of "Half-Life" to measure the age of a rock or rock formation. Sources: Am a student in science class
The rate of decay of a radioactive element is measured by its half-life, which is the time it takes for half of a sample of the element to decay. This measurement is used to determine the stability or instability of the element and to predict its rate of decay over time.
A half life means the time required for something to fall to half its initial value. The original term was used by Ernest Rutherford's discovery of the principle in 1907 as "half life period," but was shortened to "half life," in the 1950's.
any undesired radioactive material. commonly products of nuclear reactors, but can come from other sources.
By co-op you mean mulitplayer. Yes. Half-Life 2: Deathmatch is only on PC.
it means that part of tropic which is active i.e. all life in tropical areas of world increasing in number and diversity
It has a mean lifetime of 2.2 microseconds, this is equivalent to a half-life of about 1.5 microseconds.It has a mean lifetime of 2.2 microseconds, this is equivalent to a half-life of about 1.5 microseconds.It has a mean lifetime of 2.2 microseconds, this is equivalent to a half-life of about 1.5 microseconds.It has a mean lifetime of 2.2 microseconds, this is equivalent to a half-life of about 1.5 microseconds.
If you mean HALF LIFE, that is the length of time it takes a quantity of a radioactive element to lose half its radioactivity.
It means keep active so that your life will be interesting.
I'm assuming you mean "half-life". If that's the case, that is a term referring to how long a drug stays in your system after you've stopped taking it.