226 Old Beach Road , Ocracoke Island,map The Half Life Of Radium 226 Is 1590 Yrs Old. If A Sample Contains 100g, How Many Mg Will Remain After 4000 Yrs?

The half life of radium 226 is 1590 yrs old. If a sample contains 100g, how many mg will remain after 4000 yrs? - 226 old beach road , ocracoke island,map

The equation is

A (t) = A (0) [0.5 ^ (t / h)]

where A (0) is the original amount (100 g), t time in years (4000), h is the half-life (1590) and A (t) is the amount after t years.

A (4000) = 100 [0.5 ^ (4000/1590)]

= 100 (0.5 ^ 2.51572327) = 100 (0.174860548)

G = 17.48605479