More Lessons for Chemistry
This is a series of lectures in videos covering Chemistry topics taught in High Schools.
What is half-life?
Half-life is the amount of time it takes for half of the material to decay.
Half Life (part 1)
Half Life (part 2)
Describes radioactive half life and how to do some simple calculations using half life.
Introduction to half-life
Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.
You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.