The half-life of Radium-226 is 1590 years. If a sample contains 200 mg, how many mg will remain after 2000 years?

Question

The half-life of Radium-226 is 1590 years. If a sample contains 200 mg, how many mg will remain after 2000 years?

Answer 1

Half life formula

Amount = C (1/2)^t/H

C = initial mass = 200 g

t = time = 2000 yrs

H = half life = 1590 years

You can calculate the amount now