Initially, students may regard atoms as the fundamental chemical particles. True, electrons can be chipped off an atom, and...

Teaching Guidance 14-16

One of the most important characteristics of radioactivity is that it decays exponentially. This has two basic mathematical...

Teaching Guidance 14-16

The rate of decay of a radioactive source is proportional to the number of radioactive atoms (N) which are present.

Teaching Guidance 14-16