Radium (Ra) is a rare and highly radioactive element discovered by Marie and Pierre Curie in 1898 🧪🔬. It is known for its glowing blue hue 🌟 and was once used in luminous paints for watches and clocks 🕰️. However, due to its intense radioactivity, which poses significant health risks ☠️, its use is now heavily regulated. Radium played a crucial role in early research on radioactivity, paving the way for advancements in nuclear science and medicine 🚀🩺.
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