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      "statement": "# The Curies & Bémont: evidence for radium\n\nSeparated a strongly radioactive barium-associated fraction from pitchblende and proposed a new element, radium, using chemical and spectroscopic evidence.\n\n## Scientific scope\n\nThe announcement precedes isolation of pure radium and later atomic understanding. It is distinct from the same year’s polonium report; Gustave Bémont is retained as a coauthor.\n\n## Reading status\n\nThis is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.\n\n## People and systems\n\nPierre Curie; Marie Curie; Gustave Bémont\n\nFull byline of the specified publication; original laboratory roles remain in the source.\n\n\n\n## Original sources\n\n- [Curie, Curie and Bémont: On a New, Strongly Radio-active Substance Contained in Pitchblende (1898), AIP translation](https://history.aip.org/exhibits/curie/discover_text.htm)\n",
      "summary": "Separated a strongly radioactive barium-associated fraction from pitchblende and proposed a new element, radium, using chemical and spectroscopic evidence.",
      "title": "The Curies & Bémont: evidence for radium"
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    "what_changed": "Separated a strongly radioactive barium-associated fraction from pitchblende and proposed a new element, radium, using chemical and spectroscopic evidence.",
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        "title": "Curie, Curie and Bémont: On a New, Strongly Radio-active Substance Contained in Pitchblende (1898), AIP translation",
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