0
Yes. Well it depends on how much you start with. Numerically the exponential decay curve approaches zero without touching it, but in reality, matter is composed of elemental particles. Consider that at the end of 10 half lives, you had a single atom of Carbon14. So at 9 half lives, there should be 2 Carbon14 atoms. If you keep going, then at the start, you had 1024 atoms. And that is a teeny tiny amount.
To put in perspective, if you have one mole of Carbon 14 (that is 14 grams) But there are 6.023 x 10^23 atoms. It would take 79 half-lives to get down to just a single atom of Carbon 14. In reality, it is a little more complex than this, but this should put it in perspective.
What else can I help you with?
What property of half-lives makes radioactive material so problematic?
The property of half-lives that makes radioactive material problematic is that they can remain dangerous for long periods of time. This means that even after a substantial amount of time has passed, the material can still emit radiation and pose a threat to human health and the environment.
After three half-lives what percent of the radioactive isotope is remaining?
After three half-lives, 12.5% of the radioactive isotope is remaining. This is because each half-life reduces the amount of radioactive material by half.
How many half-lives have passed for 50 percent of the original radioactive material?
One half-life has passed for 50 percent of the original radioactive material to decay.
Why is silver radioactive?
Silver itself is not radioactive. However, certain isotopes of silver can be radioactive. For example, silver-108 and silver-110 are radioactive isotopes with long half-lives that can undergo radioactive decay. These isotopes are not commonly found in nature.
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.
How much parent material will be left after five half-lives?
Only 1/32 of the original radioactive material will remain. (½)5 = 1/32
After three half lives have passed how much of the original radioactive material will remaim?
After three half-lives, 12.5% of the original radioactive material will remain. Each half-life reduces the amount of material by half, so after three half-lives the remaining material will be 0.5^3 = 0.125 or 12.5%.
After three half-lives what fraction of a radioactive sample will remain?
Approx 1/8 will remain.
What percentage of a radioactive species would be found as daughter material after seven half lives?
The equation for half-life is AT = A0 2 (-T / H) where A0 is the starting activity, AT is the activity at some time T, and H is half-life in units of T. As a result, seven half-lives would be 2(-7) or 0.0078125 of the original activity.
What property of half-lives makes radioactive material so problematic?
The property of half-lives that makes radioactive material problematic is that they can remain dangerous for long periods of time. This means that even after a substantial amount of time has passed, the material can still emit radiation and pose a threat to human health and the environment.
What fraction of a radioactive sample remains after three half-lives?
Not sure what you mean by "had-lives". After 3 half lives, approx 1/8 would remain.
Tritium has a half life of 12.3 years if 118mg escapes what percent of the spill will remian radioactive in 61.5 years?
After 61.5 years, five half-lives would have passed for tritium (12.3 years x 5 = 61.5 years). Each half-life reduces the amount of radioactive material by half. Therefore, after 61.5 years, 3.125% (0.5^5) of the initial 118mg of tritium would remain radioactive.
How long does it take for this radioactive material to decay through 2 half-lives?
It will take twice the half-life of the radioactive material for it to decay through two half-lives. If the half-life is 1 hour, it will take 2 hours for the material to decay through 2 half-lives.
After three half-lives what percent of the radioactive isotope is remaining?
After three half-lives, 12.5% of the radioactive isotope is remaining. This is because each half-life reduces the amount of radioactive material by half.
After 6 half-lives What percentage of a radioactive sample remain?
After 6 half lives, the remaining will be (1/2)6 i.e 1/64 th of the initial amount. Hence by percentage it would be 1.5625 %
What percentage of a radioactive element will remain after seven half lives?
After seven half lives, approximately 0.78125% (1/2^7) of the original radioactive element will remain. This can be calculated by repeatedly halving the remaining amount after each half life.
What fraction of a radioactive nuclei remain after p half lives?
The remainder is 2-p or 0.5p of the original amount.
