Logarithms: Radioactive Decay
View the Lesson | MATHguide homepage Updated June 21st, 2023

Status: Waiting for your answer.

Formula: Radioactive Decay Formula
Given: There are 15 grams of Radon-222.
Radon-222 has a half-life of 3.8 days.
Find:  Use the formula above to calculate the time it would take for the given mass to degrade down to 0.17 grams. Calculate the solution for 't' to the nearest tenth using logarithms.
Solution:   t = days