0
How long would it take a radioactive element with a mass of 20 grams to decrease to 5 grams if the half life is 1000 years?
Wiki User
∙ 7y ago
You would have to wait 2,000 years for this to occur.
Half of 2,000 is 1,000.
Half of 1,000 is 500.
This process happens twice. 1,000 years * 2 processes = 2,000 years.
Wiki User
∙ 7y ago
Add your answer:
Earn +20 pts
Would you use grams or kilograms to measure a cell phone?
grams
How would you measure a mouse in grams or kilograms?
I would describe their weight in grams.
Does a pen weigh 10 grams or 100 grams?
A pen would weigh approximately 10 grams. 100 grams would be about 100 grams of feathers.
What would happen to the number of number of bears if the salmon were to decrease?
the bears would decrease because bears eat salmon
Would a pen be measured in grams or in kilogram?
grams
How long would you have to wait for the mass to decrease to 25 grams if a radioactive element has a half-life of 2000 years and the sample of the element begins with a mass of 100 grams?
You would have to wait for 2000 years for the mass to decrease to 50 grams (one half-life) and another 2000 years to decrease to 25 grams (two half-lives). So, in total, you would have to wait 4000 years for the mass to decrease to 25 grams.
A radioactive element has a half-life of 1000 years. If a sample of this element begins with a mass of 20 grams how long would you have to wait for the mass to decrease to 5 grams?
Since the element has a half-life of 1000 years, it will take two half-lives for the mass to decrease to 5 grams from 20 grams. Two half-lives equal 2000 years, so you would have to wait 2000 years for the mass to decrease to 5 grams.
A radioactive element has a half-life of 3000 years. If a sample of this element begins with a mass of 60 grams how long would you have to wait for the mass to decrease to 15 grams?
You would have to wait 6,000 years for this to occur, because it requires twice the half-life to reduce the radioactive isotope to 1/4 of its original mass.
A radioactive element has a half-life of 2000 years. If a sample of this element begins with a mass of 100 grams how long would you have to wait for the mass to decrease to 25 grams?
You would have to wait 6,000 years for this to occur, because it requires twice the half-life to reduce the radioactive isotope to 1/4 of its original mass.
A 2.5 gram sample of a radioactive element was formed in a 1960 explosion of an atomic bomb at Johnson Island in the Pacific Test Site The half-life of the radioactive element is 28 years How much?
After 28 years, half of the 2.5 grams (1.25 grams) would remain. After another 28 years (56 years total), only 0.625 grams would remain, and so on. The amount of the radioactive element left can be calculated using the formula: remaining amount = initial amount * (1/2)^(years/half-life), where the initial amount is 2.5 grams and the years is the given time.
What kind of decay can change one element to another kind of element?
That would be radioactive decay.
What is am element?
Element Am is Americium. Americium is radioactive element number ninety five. I would not wanna mess with Americium
If you had a stable element 115 could you then have an isotope of it that would be non-radioactive?
Element 115, also known as moscovium, is highly unstable and all of its isotopes are radioactive. It is unlikely that a stable isotope of element 115 could exist based on our current understanding of nuclear physics and the periodic table.
Im doin a project on a radioactive element with a partner-he's kinda reckless.Im worreid he actually bring that radioactive element into my house to work with.I don't want radiation poisoning.Will he?
Really? Are you that stupid? Who in the right mind would get a radioactive element or even find the place to buy one? You sir are an idiot...
What is the term for the element that a radioactive isotope decay into?
The term for the element that a radioactive isotope decays into is called the "daughter product". During radioactive decay, the original isotope transforms into a different element or isotope through a series of decay reactions.
How much of the radioactive element will be left one billion years from now?
It depends on the half-life of the radioactive element. After one billion years, only a fraction of the original amount would remain, based on the decay rate determined by the half-life of the element.
If the atomic mass of an element is x what is the mass in grams of 6.021023 atoms of the element?
To find the mass of 6.02 x 10^23 atoms of an element, you would multiply the atomic mass of the element (x) by Avogadro's number (6.02 x 10^23 molecules/mol) to get the mass in grams. The result would be x grams.
