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A half-life is the time it takes for half the original quantity of a given radioisotope to decay. If we are given a sample of one kind of radioactive material, the time it takes for half of it to undergo radioactive decay is the half-life of that radioisotope. It's a statistically derived figure, but scientists have arrived at some very accurate figures to denote the half-life of different radioactive isotopes.
The half-life of an unstable material is a constant which is characteristic of exponential decay. This follows because at any time in the decay process the number of disintegrations per second is proportional to the number of atoms of the isotope present, and this is generally unaffected by any physical influence on the material.
The half life of a radioactive isotope (radioisotope) is the amount of time required before half of the original mass of the isotope has decayed. For example, the radioisotope Uranium-238 i has a half-life of 4.46 billion years, therefore, if you have 100g of uranium-238 today in 4.46 billion years you will only have 50g.
Radioactive substances undergoes decaying process by emitting alpha and beta particles from its nuclei of its own atoms. The time required to desintegrate half of the amount of a radioactive substance is its half life.
What else can I help you with?
The nuclear product of radioactive decay is called the offspring nuclide. True False?
True. The offspring nuclide is the resulting nucleus that is produced as part of the radioactive decay process.
What radioactive decay processes do not reduce the atomic number of a nuclide?
Isomeric transition and internal conversion are examples of radioactive decay processes that do not reduce the atomic number of a nuclide. These processes involve the reorganization of the nucleus rather than changing the number of protons in the atom.
Do electric fields change radioactive decay?
Yes, but only for nuclides that decay by beta+ decay dependent on electron capture or internal conversion. This is because the strong electric field can change the ionization state of the nuclide, removing inner shell electrons or freeing up inner shell levels. Examples are beryllium-7 and rhenium-187; there are others.
The stability of a nuclide depends on the?
The stability of a nuclide depends on:the specific neutron/proton ratio that corresponds to a stable nucleus, and orthe number of protons not to exceed the stability limit (exceeding 83).Referring to question below for more information.
What is the longest radioactive halflife?
First, it isn't very accurate to talk about a radioactive "element"; you should talk about radioactive isotopes. Different isotopes of the same element can have very different behavior in this sense. For example, hydrogen-1 and hydrogen-2 are stable, while hydrogen-3 is not (half-life about 19 years).Individual atoms, in a radioactive isotope, will decay at a random moment. The half-life refers to how long it takes for half of the atoms in a given sample to decay (and convert to some other type of isotope).
The nuclear product of radioactive decay is called the offspring nuclide. True False?
True. The offspring nuclide is the resulting nucleus that is produced as part of the radioactive decay process.
What is the name of the daughter nuclide?
The daughter nuclide is the atom or atoms that result when a parent nuclide decays through emission of ionizing radiation or through fission.
How many neutrons does carbon has when the radioactive nuclide used in dating fossils?
9
What is the result radioactive decay?
One type of atom (nuclide) breaks up, emitting some particle and energy, and converting into another type of nuclide.
What would you call a series of radioactive nuclides produced by radioactive decay until a stable nuclide is reached?
Decay Series
What happens to an atom whos nucleus decomposes?
It's called Radioactive Decay. It transforms the atom (or "parent nuclide") into a "daughter nuclide"http://en.wikipedia.org/wiki/Radioactive_decay
The time required for half the atoms in a sample of a radioactive nuclide to undergo decay?
The half-life.
Which series consists of radioactive nuclides produced by successive radioactive decay until a stable nuclide is reached a. nuclide series b. half-life series c. parent series d. decay series?
Decay Series
Is any isotope of lead is radioactive?
many. one example is lead-214 with a halflife of 26.8 minutes.
What radioactive decay processes do not reduce the atomic number of a nuclide?
Isomeric transition and internal conversion are examples of radioactive decay processes that do not reduce the atomic number of a nuclide. These processes involve the reorganization of the nucleus rather than changing the number of protons in the atom.
What is the time needed for half of a sample of a radioactive isotope to break down to form daughter isotopes called?
halflife
What is the amount of time it takes for half of a radioactive sample to decay?
its called the half-life and it is different for each nuclide.
