A radioactive isotope has a half-life of 10 day. If today there are 125 g of left, what was the
A radioactive isotope has a half-life of 10 day. If today there are 125 g of left, what was the original mass 40 day earlier?
A radioactive isotope has a half-life of 10 day. If today there are 125 g of left, what was the original mass 40 day earlier?