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An area is contaminated with an element which has a half-life of 50 years How long does it take until only 1 percent of the element remains?
Wiki User
∙ 13y ago
101 1002500.5 5031000.25 2541500.125 12.552000.0625 6.2562500.03125 3.12573000.015625 1.562583500.007813 0.78125
so about 325 years
Wiki User
∙ 13y ago
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What is the half life of uranium 238 if 85.719 percent of any given amount remains after 1 billion years?
Natural uranium contain 0,7204 % uranium 235.
What fraction of the radioisotope remains in the body after one day?
If an isotope is absorbed into the body, the fraction that remains after one day depends on the radiological half-life of the isotope and the biological half-life (basically how fast the element can be eliminated from the body) of the element that the isotope represents.
What does biomagnification do to the food chain?
If a producer or low level member of the food web somehow takes in a toxin, the toxin remains in that organism. The organism that consumes the one that has become contaminated will consume several of those organisms, which are potentially all contaminated. There fore, the organism that has consumed contaminated organisms will get a stronger dosage of the toxin, and the cycle continues as the toxin moves up the food web.
How long will it take a g sample of bismuth to decay such that 2.0 g of the element remains?
You forgot to say that isotope is.
What does the term isotope mean?
Isotope means an element with a different number of neutrons, however the number of protons and electrons of the atom remains the same.
How many Percent does the original remains of the Philippine Forest have?
20 percent of the original remains of the Philippine forest
What is halflife about?
Half-life is the time it takes for one half of the radioactive material to decay. It is logarithmic, so after two half-lives, one quarter remains - then one eighth - etc.
Why does a contaminated surface need to be dry after cleaning it?
A contaminated surface needs to be dried after cleaning it because sometimes bacteria can grow and continue to thrive if a surface remains wet. Keeping the area dry after decontamination can greatly decrease the chances of it becoming contaminated again.
What remains a vital element in crime detection?
The most vital element in crime detection and criminal investigation is the human element.
What is the half life of uranium 238 if 85.719 percent of any given amount remains after 1 billion years?
Natural uranium contain 0,7204 % uranium 235.
What percent of potassium-40 remains after two half-lives?
25%
Why fresh-water remains fresh?
Water in its natural state is fresh. It is H20. It has to be contaminated by something being disolved or living in it to somehow make it otherwise.
As a sample of a radioactive element decays its half-life?
No, the half life remains exactly the same throughout
What percentage of a sum of money remains after 12.5 percent has been spent?
87.5%.
If a sterile field becomes wet with sterile solution is the field no longer considered sterile?
If a sterile field becomes "contaminated" with a sterile solution, the field remains sterile.
What fraction of the radioisotope remains in the body after one day?
If an isotope is absorbed into the body, the fraction that remains after one day depends on the radiological half-life of the isotope and the biological half-life (basically how fast the element can be eliminated from the body) of the element that the isotope represents.
What percent of wool remains in Australia?
oh well I'm the person who wrote this one answer
