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The time used for dealing with nuclear decay is called a half life.

Decay of a radioactive atom is something that happens by change, and the atoms of one isotope may be more or less prone to decay than the atoms of another. The way we normally express the rate of decay is to speak of the amount of time it takes for half of the atoms in a sample to decay, which is the same as the time during which any one atom of the sample has a 50% chance of decaying.

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What is the name of the average time needed for half The nuclei and a sample of radioactive substance to undergo radioactive DS our B radioactive substance to undergo radioactive decay?

The average time needed for half of the nuclei in a sample of a radioactive substance to undergo radioactive decay is called the "half-life." This period is a characteristic property of each radioactive isotope and varies significantly between different substances. During one half-life, the quantity of the radioactive material reduces to half of its original amount.


Why is the radiation from a radioactive substance sometimes called nuclear radiation?

Because it is produced by reactions happening inside the nucleus.


What the meaning of radioactive?

Radioactive means that an atom is unstable and undergoes radioactive decay, emitting radiation in the form of particles or electromagnetic waves. This process can result in the release of energy and transformation of the atom into a different element.


What happens to radioactive materials if you do not use them?

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.


What is the activity of a radioactive substance?

any one or a combination of radioactive substances that gives off photons that are usually considered harmful to humans and other life forms


What do we call the time it takes for half of a radioactive sample to decay?

The time it takes for half of a sample to decay is called the "half-life" of the corresponding material.


What word means unstable elements that decay?

The word Radioactive usually denotes a substance containing unstable atomic nuclei.


What are radioactive debris of uranium called?

Radioactive wastes


True or false unstable atom that decomposes and emits energy is called retroactive?

No, it's called "radioactive." "Retroactive" is something that's active in regards to the past.


Is a procedure in which a radioactive substance is placed within the body to enable visualization of a bone via the image produced by the emission of radioactive particles?

The procedure you are referring to is called a bone scan. Radioactive substances are injected into the body and accumulate in areas of high bone activity. This allows for the detection of abnormalities in the bones through the emission of radioactive particles and subsequent imaging.


What do you call something that is radioactive?

Something that is radioactive is called a radionuclide.


When an isotope is it is called radioactive?

Some isotopes are radioactive, some are not.