0
Half life is the time taken for half the atoms to decay. Whatever mass you start with, if it is a sample consisting of one pure uranium isotope, you will have half that mass of uranium after one half life. The piece of metal will not weigh half of the original mass, because the decay products will be there. In practice, a piece of uranium usually consists of a mixture of isotopes with different half lives.
What else can I help you with?
What percentage of the Uranium is left if a solid piece exists for one half life?
50% is left. That is what the term "half-life" means.
How much uranium is left if a solid piece exists for one half-life?
Half life is the time taken for half the atoms to decay. Whatever mass you start with, if it is a sample consisting of one pure uranium isotope, you will have half that mass of uranium after one half life. The piece of metal will not weigh half of the original mass, because the decay products will be there. In practice, a piece of uranium usually consists of a mixture of isotopes with different half lives.
How much uranium is left if a solid piece goes through?
If a solid piece of uranium goes through a process like fission, the amount of uranium left would depend on the specific fission reactions that occur. During fission, uranium atoms split into smaller atoms, releasing energy and more neutrons which can continue the reaction. Some uranium atoms may be converted into other elements through the fission process, so the amount of remaining uranium would be less than the original piece.
How much uranium-238 would be left after 4500000000 years?
Since that is close to its half-life, about half the original quantity will be left.
If Uranium has a halflife of 1 day how much is left at the end of the third day?
The half life of uranium is not one day. For an isotope with the half life or one day, after 3 days: the quantity remained is 12,5 %.
A piece of uranium 238 weighs 1000 kg how much this isotope will remain at about 36 109 years?
After 36,109 years, approximately half of the uranium-238 would have decayed into other isotopes. Uranium-238 has a half-life of about 4.5 billion years, so after 36,109 years, you would be left with roughly 1/2^8000 (the number of half-lives) of the original 1000 kg. This would be an extremely small fraction, close to zero.
If a rock sample originally contained 12 g of Uranium-235 how much will be left after 1 half life?
(4,470 ± 0,020).109 years by alpha decay and (8,20 ± 0,10).1015 years by spontaneous fission.
If the half-life of uranium 235 is 700 million years and have 64 atoms of it how many 700-million-year units of time will pass before 1 atom of uranium 235 is left?
It would take 1.4 billion years for half of the 64 atoms of uranium-235 to decay, leaving 32 atoms. Then another 700 million years would pass for half of the remaining 32 atoms to decay, leaving 16 atoms. This process continues until only 1 atom is left, which occurs after 5 half-lives or 3.5 billion years.
Why can't i get the left half of the scull in runescape?
The left skull half is the most difficult piece of the sceptre to obtain; only ankou drop this piece, and then very sparingly. It's quite rare and you are lucky when you do get it. All I can tell you is too keep trying----don't worry, it's not impossible.
Half life of uranium?
Uranium could theoreticaly last forever. The life of each uranium particle is random but over a large mass a half life can be calculated. Uranium-238(most common type of uranium) has a half life of 704 billion years so if you had 12500 tons of uranium after 704 billion years there would be 6250 tons. Every 704 billion years the mass would half until there was only an insignificant amount left.
What fraction of uranium 235 is left after 1400 million years?
25 % uranium remain, 75 % is disintegrated.
Is three eights greater than half?
no, three eights is one eighth less than one half. Imagine it as a pizza with eight slices. If you take 3, there is still one more piece left in your half.
