radium
word
Definition
Radium is a highly radioactive, silvery-white metal element discovered by Marie and Pierre Curie. It was used in the past for glow-in-the-dark products and some medical treatments, but is dangerous due to its radioactivity.
Usage & Nuances
'Radium' is used mainly in scientific, historical, or medical contexts. Often associated with Marie Curie and early studies of radioactivity. Today, its direct use is rare because it's very dangerous. Don’t confuse with 'radio' (the device or medium).
Example Sentences
Old clocks used radium to make the dials glow.
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People didn’t know how dangerous radium was when it was first used.
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Today, strict safety rules are needed when handling radium.
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Radium was discovered by Marie Curie in 1898.
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Radium is a radioactive element.
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The discovery of radium changed the world of science forever.
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