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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.
A sample of a radioactive substance decayed to 95 percent of its original amount after a year.what is the half life of the substance?
The half-life of a radioactive nuclide when 95% of it is left after one year is 13.5 years. AT = A0 2(-T/H) 0.95 = (1) 2(-1/H) ln2(0.95) = -1/H H = -1/ln2(0.95) H = 13.5
What is the increase of an amount by 20 percent?
The amount multiplied by 1.2
After three half-lives what fraction of a radioactive sample remains?
1/8 of the original amount remains.
When the amount of a radioactive substance is reduced by 50 percent what has occurred?
Half-Life APEX (; xoxo
How much acetonitrile in 36 percent acetonitrile?
Approximately 0.36 of the total amount in the container.
What is the percentage of radioactive nuclei left after 3 half lives have passed?
12.5%
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.
What is the relationship between radioactive isotope and radioactive dating?
In radiometric dating, the amount of a certain radioactive isotope in an object is compared with a reference amount. This ratio can then be used to calculate how long this isotope has been decaying in the object since its formation. For example, if you find that the amount of radioactive isotope left is one half of the reference amount, then the amount of time since the formation of the object would be equal to that radioactive isotope's half-life.
WHAT DOES The amount of radiation that an individual absorbs depends on?
Time exposed to a radioactive source and the Distance a person is from a radioactive source and Type and amount of shielding between a person and a radioactive source.
Determine the amount of radioactive material in a package of radioactive materials you would look at the?
label
Why must radioactive decay must be constant in order for radiometric 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.
The amount of radiation that an individual absorbs depended on what?
Time exposed to a radioactive source Distance a person is from a radioactive source Type and amount of shielding between a person and a radioactive source X All answers are correct
What does a radioactive hazard placard on a vehicle indicate?
The radioactive placard on a vehicle indicates that the vehicle carries some amount or regulated radioactive material.
