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What is half of 6.5 billion?
Half of 6.5 billion is 3,250,000,000 (3.25 billion).
How do you write 1 and one half billion?
1 and one half billion can be written as 1.5 billion.
What is half of 2 billion?
Half of 2 billion is 1 billion. To find half of a number, you divide it by 2. In this case, dividing 2 billion by 2 gives you 1 billion. This is because half of any number is equal to dividing that number by 2.
What is one half billion divided by 16?
One half billion divided by 16 is 31,250.
How many years would it take half of the rubidium-87 atoms in piece of rock to change into strontium-87?
The half-life of rubidium-87 is approximately 48.8 billion years. This means it would take about 48.8 billion years for half of the rubidium-87 atoms in a rock sample to decay into strontium-87. Therefore, to see half of the rubidium-87 atoms change into strontium-87, you would need to wait this extensive period.
Assume that the age of the Earth is 4.6 billion years How many half-lives of Potassium-40 does the age of the Earth represent?
Divide 4.6 billion by 1.31x109 which is the half life of Potassium-40 and you will have your answer.
What is half life of potassium-40?
The half life of potassium 40 is 1.3 billion years.
What is the half life of potassium-40?
The half life of potassium 40 is 1.3 billion years.
A potassium 40 sample starts with 50 atoms and 1.25 billion years later there are 25 atoms What is the half life of potassium 40?
1.25 billion years: 25/50 or half the original atoms have disintegrated in 1.25 billion years, and that is the definition of half life.
A potassium-40 sample starts with 50 atoms and 1.25 billion years later there are 25 atoms. What is the half-life of potassium-40?
1.25 billion years
What is the half-life of potassium-40 if a potassium-40 sample starts with 50 atoms and 1.25 billion years later there are 25 atoms?
The half-life of potassium-40 is 1.25 billion years since half of the original sample decays in that time. With 50 atoms initially, having 25 atoms remaining after 1.25 billion years aligns with the expected decay pattern for a half-life.
How much potassium-40 would remain after three half lives?
Potassium 40 is an isotope with 19 protons (and electrons) and 21 neutrons. Potassium 40 accounts for around 0.012% of potassium and is fairly stable (half life of 1.25 billion years).Potassium 40 is an isotope with 19 protons (and electrons) and 21 neutrons. Potassium 40 accounts for around 0.012% of potassium and is fairly stable (half life of 1.25 billion years).Potassium 40 is an isotope with 19 protons (and electrons) and 21 neutrons. Potassium 40 accounts for around 0.012% of potassium and is fairly stable (half life of 1.25 billion years).Potassium 40 is an isotope with 19 protons (and electrons) and 21 neutrons. Potassium 40 accounts for around 0.012% of potassium and is fairly stable (half life of 1.25 billion years).
Is potassium 40 a stable isotope?
No, potassium-40 is a radioactive isotope of potassium. It undergoes radioactive decay with a half-life of about 1.25 billion years, emitting beta particles in the process.
How old are Canadian rocks?
Not all Canadian rocks are the same age. The oldest ones are about three and a half billion years old.
How much of an 800-gram sample of potassium-40 will remain after 3.910000000000 years of radioactive decay?
Approximately 400 grams of the potassium-40 sample will remain after 3.91 years, as potassium-40 has a half-life of around 1.25 billion years. This means that half of the initial sample would have decayed by that time.
Suppose you find a rock that contains some potassium-40 half-life of 1.3 billion years You measure the amount and determine that there are 5 grams of potassium-40 in the rock By measuring the amount o?
Based on the information provided, you can deduce the initial amount of potassium-40 was 10 grams since half of 10 grams is 5 grams. If there are 5 grams left and the half-life is 1.3 billion years, the rock is approximately 2.6 billion years old.
If a radioactive isotope had a half - life of 1 billion years how much of it would be left after 2 billion years?
1/4: Half would be gone after a billion years and half of that would be gone in another billion years. 1/4: Half would be gone after a billion years and half of that would be gone in another billion years. 1/4: Half would be gone after a billion years and half of that would be gone in another billion years.
