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The half life of cobalt 60 is 5.3 years After years 14 of the original amount of cobalt 60 will remain?
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∙ 13y ago
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∙ 13y ago
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The half-life of cobalt-60 is 5.3 years After years 1 4 of the original amount of cobalt-60 will remain?
After twice the half-life, 1/4 of the original amount remains. After 3 times the half-life, 1/8 of the original amount remains. Etc.
How many days will it take an amount of tritium to fall to a quarter?
The half life of Tritium is 12.32 years. it would therefore take 24.64 years for the amount to fall to a quarter of the original.
Why cant carbon-14 be used to date material that is older than 75000 years?
Carbon has a half life of 5730 years. That means that after 5730 years there'll only be half the amount left. After about 11500 there will be a quarter of the original. After 75000 years there will be about 0.0001 of the original sample which is too small to date accurately?
How many grams remain after 20 years?
100 grams
Is copper manmade?
Cobalt like iron and many other metals occurs mainly in ore form and has been used in compound form to colour glass and pottery for over 2,000 years. However Cobalt-60 a radioactive isotope is artificiality produced from the stable common isotope Cobalt 59
The half-life of cobalt-60 is 5.3 years After years 1 4 of the original amount of cobalt-60 will remain?
After twice the half-life, 1/4 of the original amount remains. After 3 times the half-life, 1/8 of the original amount remains. Etc.
How much cobalt will remain in the rock after 21.2 years?
This seems to refer to radioactive decay. The answer would depend on the isotope of cobalt used! For example, cobalt-59 is stable, so in this case, all of the original cobalt would remain.For more information, check the Wikipedia article entitled "Isotopes of cobalt".
What percentage of the initial radioactivity of cobalt-60 would be left after being stored for 32 years?
The half life of Cobalt-60 is 5.27 years, so 32 years is almost exactly six half lives. (Which is probably why the question is put this way). Every half life the activity halves, so after six half lives it is reduced by a factor 26, which is 64. Therefore the activity after six half lives is 1/64 of the original level, or 1.56 percent.
What is the half -life of cobalt-60?
Cobalt-60 has an 1/2 life of 5.24 years
What half-life of C14 is 5730 years. What fraction of the original C14 would you expect to be present in a fossil that is 28650 years old?
1/32 of the original amount.
What is half-life of cobalt?
5.27 years.
What is the half-life of Cobalt-60?
Half-life of Co-60 = 5,27 year by beta- emission (0.315 MeV max.)
What total mass of a 16 gram sample of 60co will remain unchanged after 15.8 years?
The half-life of 27Co60 is about 5.27 years. 15.8 years is 3 half-lives, so 0.53 or 0.125 of the original sample of 16 g will remain, that being 2 g.
How many days will it take an amount of tritium to fall to a quarter?
The half life of Tritium is 12.32 years. it would therefore take 24.64 years for the amount to fall to a quarter of the original.
How much cesium with a half life 2 years would remain from a sample after 4 years?
The equation for half-life is ... AT = A0 2 (-T/H) ... where A0 is the starting activity, AT is the activity at some time T, and H is the half-life, in units of T. 55134Cs has a half-life of 2.0652 years. Plugging in the known values, we get ... AT = 5.8 2 (-11.5/2.0652) AT = 5.8 2 -5.5685 AT = 0.12222
Does baby hair differ from adult hair?
Of Course It Does as it is the hair one was born with - once this is shed the actual texture is reveal - the remnants of the original texture remain on some adults for years ( hairline, nape ) if they allow it to remain untouched
How long does the battery last in the 2005 Chevy Cobalt?
3 to 6 years
