Exponential Growth & Decay

Question

5). The half-life of radium is 1690 years. If 60 grams are present now, how much will be present in 750 years? ___ grams

 (Do not round until the final answer. Then round to the nearest thousandth as needed.)

Answer 1

The trick here is relating the radioactive decay constant to the half-life.

In the video, I show you exactly how to do that!