The amount of material left in radioactive decay is an exponential function. Therefore, the way you solve this is to write it as an exponential function; for example:
f = e-kt, where "f" is the fraction remaining after a certain time, "t" is the time in any unit you choose (for example, years), and "k" is a constant you have to find out. Replace the numbers you know (for t = 1600 years, f = 1/2, since 1/2 of the original remains), and solve for "k".
Then, write the equation again, this time with the constant "k" you figured out before, and the time (365 years). This will give you the fraction left after that amount of time.
1,600,000 Grams
1.6 Grams
The 16th. century spans the years 1501-1600.The 16th. century spans the years 1501-1600.The 16th. century spans the years 1501-1600.The 16th. century spans the years 1501-1600.
1,000 mg = 1 gram 1,600 mg = (1,600 / 1,000) = 1.6grams
1,000 mg = 1 gram 1,600 mg = (1,600 / 1,000) = 1.6grams
I will try to make the answer simple for you. Half life is 1600 years. So After 1600 years you have half the mass left. That is 10 grams. After another 1600 years, you will be left with half the mass of 10 grams. That is five grams. So after total 3200 years you will be left with 5 grams of mass of the Ra-226 left with.
The question, as posed cannot be answered because you have not stated the units for the half-life. Some things have half lives of millions of years while others have half-lives measured in micro-seconds. Fortunately, Wikipedia came to my rescue and the half-life is 1600 years (approx). The answer is approx 4.3 grams.
1600 grams = 3.53 pounds
1600 grams = 3 pounds 8.4 ounces
1.6 Grams
1,600,000 Grams
1600 grams
1.6 X 1000 = 1600 grams 1 kilogram = 1000 grams 1 gram = 0.001 kilograms
1600 grams is about 3.527 pounds.
The 16th. century spans the years 1501-1600.The 16th. century spans the years 1501-1600.The 16th. century spans the years 1501-1600.The 16th. century spans the years 1501-1600.
1600 bc is -1600. 2010-(-1600) = 2010 + 1600, so the difference is 3610 years
1,600 g = 3.527 pounds.