Question

The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass. Starting with 110 grams of a radioactive isotope, how much will be left after 6 half-lives?

round to the nearest gram

Answer 1

`1) \ (110)/(2) = 55 \\2) \ (55)/(2) = 27.5 \\3) \ (27.5)/(2) = 13.75 \\4) \ (13.75)/(2) = 6.875 \\5) \ (6.875)/(2) = 3.4375 \\6) \ (3.4375)/(2) = 1.71875`

Since the question requires answer to be rounded, your answer is
`2` grams.