How old is a sample of wood whose 14C content is found to be 43% that of a living tree? The half-life of 14C is 5730 years.
(b) Iodine-131 is one of the most important isotopes used in the diagnosis of thyroid cancer. One atom has a mass of 130.906114 amu. Calculate the binding energy per nucleon.
Decay constant
The rate of counts is proportional to the number of C-14 atoms in the sample.
The age of the sample
4430 years
Binding energy per nucleon.
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Iodine-131 is one of the most important isotopes used in the diagnosis of thyroid cancer. One atom has a mass of 130.906114 amu. Calculate the binding energy per nucleon.