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Q. Which among the following scientists had discovered Radium?
Answer: Marie and Pierre Curie
Notes: Radium(Ra) with atomic number 88 was discovered by Marie and Pierre Curie in 1898 as Radium Chloride. However, it was Radium was isolated in its metallic state by Marie Curie and André-Louis Debierne through the electrolysis of radium chloride in 1911.

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📌 Question Number: 2 in Chemistry-8-Radioactivity in the above course in App.