The half-life of Radium-226 is 1590 years. If a sample contains 300 mg, how many mg will remain after 4000 years?

Question

math ughh

Answer 1

The formula for this is

a(final amount)=a(initial amount)×(1/2)^(t (time)/h (half life))

 

So a=300×(1/2)^(4000/1590)

 

So a=52.458