Plutonium is a radioactive material that has a half-life of 30 million years. It starts off with 100% of it. What percentage (%) of this radioactive material is left after 90 million years?

Ask your question to the AI advisor

Ai-bot is an expert in any field and is the perfect companion for reliable and useful answers and advice on a variety of topics, including science, history, technology, art, sports, health, culture and more.