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Which radioactive element has a half life of 4.5 billion years?
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∙ 12y ago
Uranium
Wiki User
∙ 12y ago
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Which radioactive element has a half-life of 4.5 billion years?
Uranium
A radioactive element has a half-life of 2000 years. If a sample of this element begins with a mass of 100 grams how long would you have to wait for the mass to decrease to 25 grams?
You would have to wait 6,000 years for this to occur, because it requires twice the half-life to reduce the radioactive isotope to 1/4 of its original mass.
What is the name of the time required to change a part of a radioactive element to a stable element?
half life
What is the half-life of a substance?
Half-life refers to a property of radioactive materials. The half life in the length of time it takes half of the quantity of an element to decay and become a more stable, non radioactive element. So if a 1 kg block of a substance had a half life of 10,000 years, in 10,000 years time there would 0.5 Kg of radioactive material remaining in the block. 10,000 years later there would again only be half as much, so there would then be 0.25 Kg of the radioactive material. Every further 10,000 years the quantity of the remaining radioactive material would half.
Which statement is true about half-lives a Different atoms of the same element have different half-lives. b Each radioactive isotope has its own half-life. c All radioactive nuclides of an element?
The correct answer is: Half-lives are not affected by temperature.
Which radioactive element has a half-life of 4.5 billion years?
Uranium
How much of the radioactive element will be left one billion years from now?
That depends on the "half-life" of that particular radioactive element, which the question forgot to state. They're all different. Various radioactive elements have half-lives ranging from microseconds to millions of years.
What is the range of half-lives of different radioactive element?
It would be quite difficult to list all radioactive elements and their half lives in this area. Lithium 5 has a half life of about a trillionth of a second. Uranium 238 has a half life of about 4.7 billion years. Since the world is about 4.2 billion years, over half the Uranium 238 is still around. The first element in the Periodic Table, Hydrogen, has a radioactive form, Hydrogen 3. It has a half life of about Twelve and a half years. Helium has a radioactive form, Helium 5. It's half life is a trillionth of a second. Then you get to elements with different radioactive isotopes. You will need to look them up in a handbook. Tin is the element with the most isotopes.
If a radioactive isotope had a half - life of 1 billion years how much of it would be left after 2 billion years?
1/4: Half would be gone after a billion years and half of that would be gone in another billion years. 1/4: Half would be gone after a billion years and half of that would be gone in another billion years. 1/4: Half would be gone after a billion years and half of that would be gone in another billion years.
What radioactive element is the time it takes for half of the radioactive atoms to decay?
The half-life
How can half lives be shortened?
Half life of an element can't be changed.. It is a characteristic of a radioactive element which is independent of chemical and physical conditions.. Half life is that time in which half of radioactive sample( i.e., a radioactive element) decomposes. So no matter what amount you take half life of an element remains same.
The time it takes for half of the radioactive atoms in a sample of a radioactive element to decay is the element's?
i got no idea
What is the half-life of the radioactive isotope 6-C-14 element carbon?
The half-life of 6C14 is 5730 years, by Beta- decay.
How long will it take half of a radioactive sample to decay?
The length of time depends on the element and isotope, but the point at which half of the sample has decayed is known as the half-life.
Is U-238 a short lived radioactive isotope?
No, it has a half-life* of around 4.468 billion years *A Half-life is the time it takes for the amount of substance undergoing decay to half.
What is the time it takes for half of the Atoms of a radioactive element to decay?
The half-life
What is the time it takes for half of the atoms in a radioactive element to decay?
The half-life
