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The half life of thorium-232 is 1,405(6).10e10 years.

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How much thorium-234 will remain after 2 half lives?

After 2 half-lives, 25% of the original amount of thorium-234 will remain. This is because half of the substance decays in each half-life period.


Thorium-234 has a half-life of 24.1 days. How much of a 100-g sample of thorium-234 will be unchanged after 48.2 days?

Thorium-234 has a half-life of 24.1 days. How much of a 100-g sample of thorium-234 will be unchanged after 48.2 days?


How much of an 8 gram sample is left after 3 half lives?

2.66666666666667 grams


How much does it cost for 5 grams of thorium?

The cost of 5 grams of thorium varies depending on the supplier, but on average, it can range from $100 to $300 per gram. Therefore, 5 grams of thorium can cost between $500 to $1500.


Radium-226 has a half-life of 1602 years. If you start out with 15 grams of radium-226 how much will be left after 3 half-lives?

1.875g


How much Uranium 235 would remain after 4 half lives?

After one half-life, half of the original amount of Uranium-235 would remain. After four half-lives, only ( \frac{1}{2^4} ) or ( \frac{1}{16} ) of the original amount would be left. Therefore, if you started with 100 grams of Uranium-235, 6.25 grams would remain after four half-lives.


How much mass remains in Thorium 234 after a half?

After 24,10(3) days (the half-time of this isotope) the mass is 50 %.


How much is half a kilogram in grams?

500 grams


If a sample that originally contain 10 grams of C14 has gone through two half-lives of Decay how much C14 will be left?

2.5


How much is metric grams is half pound?

Half a pound is equal to approximately 226.8 grams.


How much is half ounce in grams?

15 grams = 0.53 ounces.


A 200 gram sample having a half- life of 12 seconds would have how much remaining after 36 seconds?

To determine the remaining amount of a 200 gram sample after 36 seconds with a half-life of 12 seconds, we first calculate how many half-lives fit into 36 seconds. There are three half-lives in 36 seconds (36 ÷ 12 = 3). Each half-life reduces the sample by half: after the first half-life, 100 grams remain; after the second, 50 grams; and after the third, 25 grams. Therefore, 25 grams of the sample would remain after 36 seconds.