Question

Gold has a half life of 7653Yrs. How many years would it take for 200g sample to be reduced to 25g?

Answer 1

it would take 7653 years to go from 200 to 100

then from 100 to 50 would be another 7653 years

then 50 to 25 would be another 7653 years

so 7653 * 3 = 22,959 years total