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So, if you know the radioactive isotope found in a substance and the isotope's half-life, you can calculate the age of the substance. Well, a simple explanation is that it is the time required for a quantity to fall to half of its starting value.So, you might say that the 'full-life' of a radioactive isotope ends when it has given off all of its radiation and reaches a point of being non-radioactive.When the isotope is halfway to that point, it has reached its half-life.There are different methods of radiometric dating that will vary due to the type of material that is being dated.

It works because we know the fixed radioactive decay rates of uranium-238, which decays to lead-206, and for uranium-235, which decays to lead-207.So, we start out with two isotopes of uranium that are unstable and radioactive.They release radiation until they eventually become stable isotopes of lead.And this would also include things like trees and plants, which give us paper and cloth.So, radiocarbon dating is also useful for determining the age of relics, such the Dead Sea Scrolls and the Shroud of Turin.




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'I wouldn't precisely use the word "falling", rather i would say i felt emotionally bonded, easily understood by them..' you can recognize how you feel when you are with them and there is nothing wrong with this. Post DOC, same thing, the man was not anything closer to my father or even reminded me of him, he was warm, available, talkative too, listened and would sometimes pull abit of humour, my father was and is alittle cold and distant, unavailable, acts busy, he will not pay much attention etc Sarah, if you ask me, i haven't been able to find a man who was as affectionate as my dad was to me.. Because i remember i lost him at 11, and i have a distant memory you can say, where i was all the times in his arms..


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