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Uranium
Christophe Welch
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Which radioactive element has a half life of 4.5 billion years?
Uranium
What element transformed carbon dioxide atmosphere a billion years ago to what you breathe?
Oxygen is the element that transformed Carbon Dioxide atmosphere a billion years ago to what you breathe.
Do nuclear power plants produce radioactive substances?
Yes, but they also consume them. The uranium fuel used has a halflife measured in billions of years, the materials they produce have halflives measured in only hundreds or thousands of years. So in the long term balance of things they consume radioactive substances faster than they produce them.
What element is used to make nuclear weapons?
Uranium-235Uranium-233Plutonium-239DeuteriumTritiumAs tritium is radioactive with a short halflife (12 years), weapons using it age rapidly possibly becoming unreliable. Therefore it is normally produced from Lithium (in the form of Lithium Deuteride) by fission neutron bombardment just before fusion is initiated.
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.
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 if your cat is radioactive with the same halflife as carbon 14. how many years will it take for three fourths of your cat to degrade?
my grandma
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.
What Element stays radioactive for millions of years?
The element that can stay radioactive for millions of years is plutonium. This is where most nuclear power plant energy comes from.
How do you identify beta decay?
A sample of 187 rhenium decays to 187-omium with halflife of 41.6 billion years. If all 188 osmium are normalized isotopes.
What element transformed carbon dioxide atmosphere a billion years ago to what you breathe?
Oxygen is the element that transformed Carbon Dioxide atmosphere a billion years ago to what you breathe.
Which lanthanide element and which transition element have only radioactive isotopes?
All or almost all elements have radioactive isotopes if artificial isotopes are included. Among the naturally occurring elements, uranium, polonium, radium, and thorium have naturally occurring radioactive isotopes on earth.
When was the element neon invented?
13.7 billion years ago.
Do nuclear power plants produce radioactive substances?
Yes, but they also consume them. The uranium fuel used has a halflife measured in billions of years, the materials they produce have halflives measured in only hundreds or thousands of years. So in the long term balance of things they consume radioactive substances faster than they produce them.
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 element is used to make nuclear weapons?
Uranium-235Uranium-233Plutonium-239DeuteriumTritiumAs tritium is radioactive with a short halflife (12 years), weapons using it age rapidly possibly becoming unreliable. Therefore it is normally produced from Lithium (in the form of Lithium Deuteride) by fission neutron bombardment just before fusion is initiated.
