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date: 30 November 2020

radium (Ra) 

A Dictionary of Public Health

Miquel Porta

, John M. LastJohn M. Last

A metallic element with very high density that has several radioactive isotopes with a half-life as long as 1,600 years, used in radiotherapy and to make luminous paint. Workers in radium mines have a high risk of cancer from exposure to ionized radiation, as did workers with radium salts (used to make luminous paint) until protective measures were applied. The properties of radium were investigated by the French physicist ... ...

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