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If radioactive radium has a half life of approximately 1599 years What percent of a given amount remains after 980 years?
Wiki User
∙ 6y ago
Luckily got it on my last try it was apparently 65.39%
Wiki User
∙ 6y ago
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How do you figure two tenths of 1 percent of a dollar amount?
You figure what two tenths of one percent of an amount is by multiplying that original amount by 0.002 The result is two tenths of a percent of that amount.
What is the amount when 12733 was a dropped percent?
It depends on what percent it was dropped.
How do you find the total money amount made when you are given a percent commission and a dollar amount?
Multiply the dollar amount by (1/100) of the percent commission.
How do you find 15 percent of an amount?
Multiply the amount by 0.15
How can you calaculate 40 percent of an amount?
Multiply the amount by 0.4
After three half-lives what fraction of a radioactive sample remains?
1/8 of the original amount remains.
Does The amount of radioactive carbon in your body increases at the time of death?
No, the amount of radioactive carbon in your body does not increase at the time of death. Radioactive carbon in the body remains constant and decays at a predictable rate over time.
When the amount of a radioactive substance is reduced by 50 percent what has occurred?
Half-Life APEX (; xoxo
What kinetics does radioactive decay obey?
Radioactive decay follows first-order kinetics, meaning the rate of decay is proportional to the amount of radioactive material present. This means that half-life remains constant throughout the decay process.
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.
Why After three half-lives what fraction of a radioactive sample remains?
After three half-lives, only 1/8 (or 12.5%) of the original radioactive sample remains. This is because each half-life reduces the amount of radioactive material by half, so after three half-lives, you would have (1/2) * (1/2) * (1/2) = 1/8 of the original sample remaining.
What is the percentage of radioactive nuclei left after 3 half lives have passed?
12.5%
How much acetonitrile in 36 percent acetonitrile?
Approximately 0.36 of the total amount in the container.
How much of a radioactive substance remains after 10 hours if its half life is 5 hours?
After 10 hours, 25% of the radioactive substance remains because each half-life reduces the amount by half. So, after the first 5 hours, 50% remains, and after the next 5 hours, half of that amount remains, which is 25%.
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.
Why must radioactive decay must be constant in order for radioactive dating to be accurate?
Amount of certain radioactive isotope in an object is compared with a reference amount. this ratio can then be used amount.
How can half lives be shortened?
Half life of an element can't be changed.. It is a characteristic of a radioactive element which is independent of chemical and physical conditions.. Half life is that time in which half of radioactive sample( i.e., a radioactive element) decomposes. So no matter what amount you take half life of an element remains same.
