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If a radioactive material has half a life of 10 years what fraction of the material will remain after 30 years?
Wiki User
∙ 6y ago
There will be 1/8 remaining.
Wiki User
∙ 6y ago
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What fraction of a radium sample will remain after 3240?
The answer depends on 3240 WHAT: seconds, days, years?
What fraction of carbon-14 will remain in the fossil of an organism that died 23080 years old?
Approx 6.1% remains.
The half life of Radium-226 is 1600 years How many grams will remain from 5 grams after 365 years?
The amount of material left in radioactive decay is an exponential function. Therefore, the way you solve this is to write it as an exponential function; for example: f = e-kt, where "f" is the fraction remaining after a certain time, "t" is the time in any unit you choose (for example, years), and "k" is a constant you have to find out. Replace the numbers you know (for t = 1600 years, f = 1/2, since 1/2 of the original remains), and solve for "k". Then, write the equation again, this time with the constant "k" you figured out before, and the time (365 years). This will give you the fraction left after that amount of time.
If the initial quantity is 5 grams how much remains after 600 years?
That depends what assumptions you make about what the 5 grams of matter is made of.
What is 17-22 years in fraction form?
39
If a radioactive material has a half-life of 10 years what fraction of the material will remain after 30 years?
One eighth would be left.
How long will a material from a power plant remain radioactive?
All radioactivity decays with time. Some fission products from uranium fission will remain active for thousands of years, others decay to insignificance within a few years.
How old is a fossil that has a radioactive material with a half life of 200 years if there is 25 percent of the original radioactive material left?
400 yrs
How much cesium would remain from a 10g sample after 4 years?
I suppose that you think to the radioactive isotope Cs-17; After 4 years remain 9,122 g.
What happens to radioactive materials if you do not use them?
That depends on the radioactive material. But whether you use it or not, the radioactive material will decay into other elements over the course of time. The time it takes for half of the material to decay into something else is called the "half-life". The more radioactive the substance is, the faster it decays. The half-life of a radioactive element can be measured from fractions of a second to billions of years.
How long can radiative material be hazardous in years?
Radio activity never stops. Radioactive material emits radioactive rays for ever. How ever it can be capped but when ever the material is exposed it will start emitting gamma and Beta rays.
How much of an 800-gram sample of potassium-40 will remain after 3.9109 years of radioactive decay?
100 grams
A specimen is found to have 3 atoms of a radioactive isotope for every 9 atoms of the stable decay product The radioactive material has a half-life of 2500 years how old is the specimen?
5000 years old
The half-life of actinium 227 is 21.772 years After 50 years how much of a 1500 g sample will remain radioactive?
Approx. 313 grams
How many years will it take for one half of the original amount of material to decay?
If you are referring to a radioactive material, that will depend on the material. Different things have very different half-lives.
What fraction of a radium sample will remain after 3240?
The answer depends on 3240 WHAT: seconds, days, years?
What fraction of radium will last for 3240 years?
Radium has a half life of 1601 years. So 24.6% will remain after 3240 years.
