Radioactive radium has a half-life of approximately 1599 years. What percent of a given amount remains after 100 years?

Expert Answers
mathace eNotes educator| Certified Educator

Formula: `y=Ce^(kt)` where y is the amount of radioactive radium at time t, k is the decay constant, and C is the initial amount of radium












Final Answer: 95.76% of radioactive radium is left after 100 years.