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How long is three half lives?
It is 5 times the time of one half-life. Please note that different isotopes have half-lives that vary from a tiny fraction of a second to billions of years, so you can't know how long this is in days, or years, or whatever, until you know what isotope you are talking about.
Why does half life increase over time?
The half-life of a substance increases over time due to the decreasing amount of the substance left to decay. As less of the original substance remains, the rate of decay slows down, resulting in a longer half-life. Additionally, some substances may transform into different isotopes or decay products with longer half-lives, contributing to the overall increase in half-life over time.
What is the half life of a radioistope?
The half-life of every isotope is different. Some elements and isotopes have half-lives in millions of years, while some elements have half-lives measured in milliseconds. You can look up all of the specifics for any element at webelements dot com.
What percentage do you have after 2 half lives?
After 2 half-lives, you would have 25% of the original amount remaining. Each half-life reduces the amount by half, so after two half-lives, you would have 25% left (50% reduced by half twice).
How is the half life of an isotope defined?
A half-life is the time taken for the radioactivity of a material to fall to half its original value. A material can undergo infinite half-lives because each time it falls to half the next half-life falls to half of that half: No half-lives have elapsed when radioactivity is at the original amount; 1/1. 1 half-life is when radioactivity is at 1/2 2 half-lives is when radioactivity is at 1/4. 3 half-lives is when radioactivity is at 1/8. 4 half-lives is when radioactivity is at 1/16. And so on.
What is the problem with disposing of radioactive wastes is that they have a long what?
Radioactive substances have half-lives. This is because the isotope constantly is changing from the radioactive isotope to a daughter element. For example, eventually, when uranium's radioactivity is gone, it becomes lead. After one half life of a radioactive substance, only 50% of that substance is still radioactive. Therefore, after one half-life, a piece of uranium is 50% lead and therefore %50 less radioactive. After another half-life, it has 25% of the original radioactivity, and 75% of the original uranium has become lead. This is the problem with radioactive wastes. It takes many years just for one half lives for some substances, such as uranium. Because radioactivity is harmful, those substances have to be stored until they are no longer radioactive. So, in short, the problem with disposing of radioactive wastes is that they have long half-lives. (although this is not true with ALL substances because some have short half-lives, but, in general, radioactive substances have long half-lives.
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 come elements below uranium have equally short half-lives as the elements above uranium?
This affirmation is not correct; the half lives are different.
The rate at which radioactive decay occur is given in half-lifeexplain the term and give the half-life of a few substances?
A half-life is the time it takes for half of the substance to decay, becoming something else. You can find a list of half-lives in the Wikipedia article "List_of_isotopes_by_half-life".
How long is three half lives?
It is 5 times the time of one half-life. Please note that different isotopes have half-lives that vary from a tiny fraction of a second to billions of years, so you can't know how long this is in days, or years, or whatever, until you know what isotope you are talking about.
How many half life's are there in a 100 year span?
A half life is the time for one half of a radioactive material to decay. Different materials have half-lives of different lengths. Some last only a fraction of a second. Some have a half life of hundreds of thousands of years. Unless you tell us what the material is, we can only answer "that all depends."
Why does half life increase over time?
The half-life of a substance increases over time due to the decreasing amount of the substance left to decay. As less of the original substance remains, the rate of decay slows down, resulting in a longer half-life. Additionally, some substances may transform into different isotopes or decay products with longer half-lives, contributing to the overall increase in half-life over time.
How The Other Half Lives was created?
How the Other Half Lives was created in 1890.
When was How the Other Half Lives created?
How the Other Half Lives was created in 1890.
What is the half life of the radioactive isotope?
The half life is the period of time it takes radioactive decay to transmute one half of the isotope present at the start of the period to a different isotope, usually an isotope of a different element. This period of time is different for different isotopes, with known isotope half lives ranging from femtoseconds to many billions of years.
The half-lives of unstable isotopes vary from milliseconds to billions of years?
Yes, that's correct. The half-life of an unstable isotope is the time it takes for half of the original sample to decay. Some isotopes decay quickly, with half-lives on the order of milliseconds, while others have extremely long half-lives, lasting billions of years. This variation in half-lives influences the stability and radioactive potential of different isotopes.
What is the half life of a radioistope?
The half-life of every isotope is different. Some elements and isotopes have half-lives in millions of years, while some elements have half-lives measured in milliseconds. You can look up all of the specifics for any element at webelements dot com.
