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703.8 million years
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∙ 11y ago
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What is the longest half life of a benzo?
According to University of Waterloo research, the half-life of benzene in soil/groundwater is between 10 - 720 days.
What is an isotope that the time it takes it to decay to half its original mass?
c.half-life
What is the half life of promethium?
Promethium 145 has a half life of 17.7 years. Promethium 146 has a half life of 5.53 years. Promethium 147 has a half life of o.22 years.
Who describes an isotopes half life?
Half-life is described in time units.
What is the half life of uranium 238?
The half-life of 238U is 4.468x109 years.
Uranium-235 has a half-life of 700 million year. how long does it take a 100 gram sample of uranium to decay to a mass of 50 grams?
If a radioactive isotope has a half-life of 4 years, than 0.125 (0.53) of the isotope will remain after 12 years, or 3 half-lives.The question asked about Uranium. There is no isotope of Uranium with a half-life of 4 years. The closest is 232U92, which has a half-life of 68.9 years.Reference: http://www.nndc.bnl.gov/chart/
How do you get half-life from a graph?
You can get half-life from a graph by picking two points where the (radio)activity decays to one half its value. The interval of time of those two points is the half-life. You can confirm by picking more points, again with a half (radio)activity value and see that the time is the same in each case.
Diagram of a half-life graph?
if they give you a diagram of half life, it is very hard to find the answer. unfortunatly my test is about that adn I don't know how to do it. please help me? i'm not dissappointed yet,
What real life situation might a curve graph be applicable?
Earnings over an individual's lifetime or times for running a half-marathon over a lifetime
What is the formula for half-life?
In chemistry, the half-life of a reaction is defined as the time needed for the concentration of a reactant to decrease to half of its initial concentration. According to that definition, the half-life of the reaction will be t1/2 = 0,693/k where k is the equilibrium constant for that reaction at a specific temperature.
The half life of uranium 235 is 700 million years After 1.4 billion or 1 400 million years what fraction of the original amount of uranium 235 remains?
A half life pertains to the time it takes for exactly half of a substance to disappear. So, if U235 has a half life of 700 million years, it will take 700 million years for half of it to decay. That would leave .5kg or 500g.
A graph of pairs of numbers that represent real-life situations It is a way to analyze the relationship between two quantities?
A coordinate graph is a graph of pairs of numbers that represent real-life situations.
Does Half life opposing force require Half life?
No. Half Life: Opposing Force does not require neither Half Life nor Half Life: Blue Shift.
What is the Life span of man according to biblical records?
In the book of Psalms in the bible , mans life is to be three score and a half . Or 70 years.
The time it takes for half of the radioactive element to decay is the element's what?
The time it takes for half the atoms in a sample of a radioactive element to decay is called the half life.
What is the term given to the time it take for one half of a sample of radioactive nuclei to decay?
I believe that term would be 'half-life'
Is half life opposing force on Playstation 2?
No, only Half-Life and Half-Life: Decay.
