Guest

You have 400 mg of a radioisotope with a half-life of 5 minutes. How much will be left after 30 minutes?

You have 400 mg of a radioisotope with a half-life of 5 minutes.  How much will be left after 30 minutes?

Grade:12th pass

1 Answers

Amarjit
105 Points
6 years ago
All types of radioactive decays follow first order kinetics. So as per that:400 to 200 to 100 to 50 to 25 to 12.5 to 6.26gm.Hence the mass left after 30 min or 6 half life is equal to 6.25 gm.

Think You Can Provide A Better Answer ?

ASK QUESTION

Get your questions answered by the expert for free