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Radium was discovered by Marie Sklodowska Curie, a Polish chemist, and Pierre Curie, a French chemist, in 1898.
Radium had been used to make self-luminous paints for watches, aircraft instrument dials and other instrumentation.
Radium is about one million times more active than uranium.
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Radium was Discovered By Marie Curie...
it used in many paces because of its shine in dark property...
also it is used in treating cancer
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