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Each isotope has another half life.
9987.3844 or 9,990
The half life of Iodine-131 is 8.02 days, that means that say if you had 1 gram of 131I after approximately 8 days there would be only 0.5g left. The other half would have become Xenon-131. After 6 half lives (~48 days in your case) you would only have 1.6% of the original amount left.
Never. As a simple exponential-decay problem, it can get as small as you want if you're willing to wait long enough, but it never reaches zero.
One Half-Life :-)
All Sodas can over a long period of time. I would say that coke would cause faster decay than pepsi.
9,990 years
5,730 years
5,730 years
After death, the brain cells can start to decay within minutes if deprived of oxygen. However, the brain tissue itself can remain intact for hours before significant decay occurs, depending on factors like temperature and environment.
The decay process caused by Coke on teeth can vary depending on factors such as frequency of consumption, oral hygiene practices, and overall health. Acidic drinks like Coke can start to erode tooth enamel within minutes of consumption, but significant decay may take longer, possibly weeks or months with regular consumption. It's important to limit acidic drinks and maintain good dental hygiene to help protect your teeth.
No. Astatine is the rarest of all natually ocurring elements. At most, there are a few grams of it on the planet, most of it deep underground. It's increadbly short half-life means that even if some did get out, it would decay long before it reached the ozone layer.