Decay Constant Calculator



Formula

The formula to calculate the decay constant is:

\[ \lambda = \frac{\ln(2)}{t_{1/2}} \]

Where:

What is a Decay Constant?

A decay constant is defined as the ratio between the half-life of a substance and the total size of the substance. It represents the probability per unit time that a given particle will decay.

Example Calculation

Example:

Step 1: Calculate the decay constant:

\[ \lambda = \frac{\ln(2)}{5730} \approx 0.000121 \text{ s}^{-1} \]