What is meant by the half-life of a radioactive isotope?

How to determine the half-life of a radioactive isotope?

How to calculate the decrease in radioactive count-rate after a given number of half-lives?

What is meant by background radiation?

Describe two natural and two man-made sources of background radiation.

What is the unit of radiation dose?

Background radiation and sources.

How to read half life graphs?

Try the free Mathway calculator and
problem solver below to practice various math topics. Try the given examples, or type in your own
problem and check your answer with the step-by-step explanations.

We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.