Cobalt is a byproduct of nickel and copper mining. In recent years, cobalt has taken its place as one of the world’s most sought-after commodities due to its use in semiconductor chips and the ...

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The half-life of cobalt-60 is 5 years. If there are 100 g of cobalt-60 in a sample, how much will be left after 15 years? 15 years is three half-lives so the fraction remaining will be \(\left ...

The two processes of irradiation and contamination are often confused. However, they are very different and useful in their own right. Occurs when an object is exposed to a source of radiation ...