Radioactive decay

Types of decay

Alpha, Beta, Gamma Decay and Positron Emission

Half-life

Introduction to half-life

Exponential decay formula proof (can skip, involves calculus)

Showing that N(t)=Ne^(-kt) describes the amount of a radioactive substance we have at time T. For students with background in Calculus. Not necessary for intro chemistry class.

Introduction to exponential decay

Introduction to Exponential Decay

More exponential decay examples

A few more examples of exponential decay.