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The daughter isotope is 87.5 percent if the half-life of the isotope is 150 million years how old is the sample?
To find the age of the sample, we need to determine how many half-lives have passed based on the daughter isotope percentage. Since the daughter isotope is 87.5% present, it means 12.5% has decayed from the parent isotope. Since 1 half-life would result in 50% decay, we can divide 12.5% by 50% to get 0.25 half-lives. Therefore, the sample is approximately 150 million years (half-life) x 0.25 = 37.5 million years old.
Which isotope would be best for measuring the age of a rock layer estimated to be about one million years old?
Geologists use radioisatope pairs to determine the age of rocks about 1 million years old. one pair is 238u which spontaneously decays to 206pb.
Would you use uranium 235 or thorium 232 to date a sample that was about million years old?
Uranium-235 would be more suitable for dating a sample that is around a million years old because its half-life is around 700 million years, which would provide a more accurate measurement compared to thorium-232, which has a shorter half-life.
How do you find the atomic number of an isotope?
The atomic number of an isotope is always identical to every other isotope, otherwise, it would form a separate element.
What radioactive isotope would be best for determining the age of prehistoric human remains?
Carbon-14 is the best radioactive isotope for dating prehistoric human remains because it decays at a relatively slow, but measurable rate. By measuring the amount of carbon-14 left in the remains, scientists can estimate the age of the sample.
The daughter isotope is 87.5 percent if the half-life of the isotope is 150 million years how old is the sample?
To find the age of the sample, we need to determine how many half-lives have passed based on the daughter isotope percentage. Since the daughter isotope is 87.5% present, it means 12.5% has decayed from the parent isotope. Since 1 half-life would result in 50% decay, we can divide 12.5% by 50% to get 0.25 half-lives. Therefore, the sample is approximately 150 million years (half-life) x 0.25 = 37.5 million years old.
What is Oklahoma's population in 2009?
If the population was 3 million something last year in 2008 then it probably went up by just a few so my estimate would be about 3,648,000
How much is 10 parts per million?
If you have 1 million parts of something 10 parts would be 10 parts per million. If you had 2 million parts of something 20 parts would be 10 parts per million.
What is the cost of a train?
I would estimate it would be around 1 million for a new one and 50 million for an old one. That what I think any ways
How many soldiers estimate would die if harry did not drop the bomb?
The estimate at the time by the american military leadership was: 2 million japanese and 1 million american soldiers.
Which isotope would be best for measuring the age of a rock layer estimated to be about one million years old?
Geologists use radioisatope pairs to determine the age of rocks about 1 million years old. one pair is 238u which spontaneously decays to 206pb.
How many immigrants came during the 1900s?
An average estimate would be about 4 million.
How big would something be if it grew 1 centimeter per year for one million years?
it would be 1 million centimeters long, because 1 times a million is one million
What if something that vibrates one million time persecond it has the frequency of?
The frequency would be 1 million Hertz.
What would you expect the half-life of the isotope used to date the age of Earth at 4.6 billion years used to be?
The half-life of the isotope used to date the age of Earth at 4.6 billion years would need to be roughly around 1.5 billion years. This would allow for the gradual decay of the isotope over time, leading to the age estimate of the Earth.
If something grows a centimeter every year how tall will it be in a million years?
if something grows a centimeter every year for a million years: the basic formula is a million times a centimeter which is about 1/2 and inch. so the answer would be 5,000,000
Would you use uranium 235 or thorium 232 to date a sample that was about million years old?
Uranium-235 would be more suitable for dating a sample that is around a million years old because its half-life is around 700 million years, which would provide a more accurate measurement compared to thorium-232, which has a shorter half-life.
