1/2 of what is left.
Ordinary water is not radioactive, so it has no half-life.
That depends on the radioactive material. But whether you use it or not, the radioactive material will decay into other elements over the course of time. The time it takes for half of the material to decay into something else is called the "half-life". The more radioactive the substance is, the faster it decays. The half-life of a radioactive element can be measured from fractions of a second to billions of years.
The time it takes for half the atoms in a sample of a radioactive element to decay is called the half life.
In the context of radioactive decay, half-life is the time it takes for half of the radioactive atoms in a sample to decay. This means that after one half-life, half of the original radioactive atoms have decayed, and after two half-lives, three-quarters have decayed, and so on. The concept of half-life helps scientists understand the rate of decay of radioactive substances.
The half-life
Chawad says... They are directly proportional
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.
Carbon-14 or 14C, which is a radioactive isotope of carbon, has a half life of 5,700 years.
I'm sorry, but apple pie does not have a half-life. You have to be radioactive to have a half-life. If apple pie was radioactive, half of the world would have 7 toes or legs growing out their backs. All of the above is lies
The half-life of a radioactive substance is the time it takes for half of the atoms in a sample to decay. It is a constant characteristic of each radioactive isotope. After one half-life, half of the original substance will remain, and the other half will have decayed into other elements.
No. Cd's are not radioactive and do not have. A half-life.
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.