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(d) How much radium will be present in the sample in 100 years? 6. Radioactive Decay Carbon-14 is a radioactive element present in living organisms. After an organism dies, the amount \( A \) of carbon-14 present begins to decline at a rate proportional to the amount present at the time of death. The half-life of carbon-14 is 5730 years.

Ask by Campbell Nguyen. in the United States
Mar 17,2025

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After 100 years, approximately 0.988 units of carbon-14 remain in the sample.

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Beyond the Answer

The fascinating story of radioactive decay has its roots in the early 20th century, with scientists like Marie Curie and Ernest Rutherford leading the charge. Radium, discovered by Curie in 1898, became a critical element in radioactivity, used in early medical treatments and luminescent paints. Little did they know that the radioactive elements would open up a Pandora's box of scientific inquiry, safety concerns, and ethical debates about their applications, especially given the long-term effects of radiation. Fast forward to today, and we find practical uses for carbon-14 dating, which has revolutionized archaeology and paleontology. By measuring the remaining carbon-14 in ancient organic materials, scientists can accurately date fossils, artworks, and historical artifacts. This revolutionary technique allows us to piece together Earth's history and our cultural heritage. Just imagine holding a piece of history in your hands and knowing when it walked the Earth—thanks to the magic of isotopes like carbon-14!

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