Question

technetium-99 has a half-life of about 6 hours a laboratory needs 200g for an experiment if the shipment takes 72 hours

Answer 1

Can you give me the context of the question please? Even if you have to post a screenshot of it? Thank you!

Answer 2

If it’s asking how much is left after 72 hours, use the half-life equation

A(t) = (A0)(1/2)^(t/h)

Where A0 is the initial amount, t is the total time, and h is the half life, and A(t) is the final amount left.