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How many days rest required after circumstance operation?
15 days
What fraction of a radium sample will remain after 3240?
The answer depends on 3240 WHAT: seconds, days, years?
How many days is one half- life?
One half-life is the time required for half of a substance to decay or transform into another substance. The specific duration of a half-life varies depending on the material or isotope in question; for example, the half-life of carbon-14 is about 5,730 years, while that of iodine-131 is approximately 8 days. Therefore, without specifying a particular isotope, one cannot determine a standard duration for a half-life in days.
17 weeks is equal to how many days?
1 week = 7 days. You now have all the information required to answer this and similar questions.
96 men in 24 days does a job. How many people required to do the same job in 20 days?
96 x 24/20 = 116 for first 4 days and 115 for remaining 16 days
How many days must elapse for a 0.80 Mg sample of iodine-131 in the thyroid to decay to 0.10 Mg?
The time required is 24.06 days. The half life of iodine 131 is 8.02 days.
How much time is required for a 6.95 sample of to decay to 0.850 if it has a half-life of 27.8 days?
The time required for a 6.95 sample to decay to 0.850 if it has a half-life of 27.8 days is 255 days/ Radioactive decay is based on half-lifes, specifically the reciprocols of powers of 2. The equation for decay is... AN = A0 2(-N/H), where A is activity, N is number of half lives, and H is half life. Calculating for the question at hand... 0.850 = 6.95 2(-N/27.8) 0.122 = 2(-N/27.8) log2(0.122) = -N/27.8 -3.04 = -N/27.8 N = 9.16, or TN = (9.16) (27.8) = 255
How long does it take a 100.00g sample of Au-1.98 to decay to 6.25g?
10.76 days
How many days are required for 200 grams of radon-222 to decay to 50.0 grams?
7.64 days
What is the sample of the radioactive isotope 131I decays its half-life?
Iodine-131 has a half-life of about 8 days.
What is the half life of a radioactive isotope if it takes 6.2 days for a 72 gram sample to decay to 18grams?
18 grams are one fourth of the original sample mass of 72 grams. Accordingly, the half life is 6.2/4 = 1.55 days.
What is the half life of the Radioisotope Bi210?
The half-life of the radioisotope Bismuth-210 (Bi-210) is approximately 5.01 days. This means that it takes about 5.01 days for half of a sample of Bi-210 to decay into its decay products.
How many days are required for 200 grams of radon-222 to decay to 50 grams?
7.64 it is the half life of radon-222 multipled by 2
How much of an 80-milligram sample of Iodine-131 would be left after 32 days?
After 32 days, approximately 5 milligrams of the 80-milligram sample of Iodine-131 would be left. Iodine-131 has a half-life of about 8 days, so after each 8-day period, half of the remaining sample will decay.
How long will it take for a 12.0-g sample of iodine-131 to decay to leave a total of 1.50 g of the isotope The half-life of iodine-131 is 8.07 days?
half life is 8.1 days, so it takes 8.1 days for half the iodine sample to decay. It takes another 8.1 days for half of the remaining sample (ie. 1/4th of the original sample) to decay. So it takes 16.2 days for 3/4th of the sample to decay.
The half life of iodine-131 is 8.0252 days How long will it take for a sample to decay to three-fourths of its original size?
A radioactive nuclide with a half-life of 8.0252 days will decay to 0.75 of its original size in 3.33 days. AT = A0 2(-T/H) 0.75 = (1) 2(-T/8.0252) log2(0.75) = log2(2(-T/8.0252)) -0.415 = -T/8.0252 T = 3.33
What is the half life of radioisotope?
Half life is the time taken for approximately half of the available nuclei in a sample of radioactive material to decay into something else. It's a characteristic of the isotope, for example, the half life of the isotope of iodine, I131 is 8.08 days. Half lives can vary from fractions of a second to thousands of years.
