What did the Curies demonstrate by studying pitchblende?

Uranium is not the only radioactive element.

All elements are potentially radioactive.

Radium can cause anemia, bone and tissue damage, and death.

Uranium salts emit something that can expose photographic film.

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3 November, 23:08

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Maximilian Archer · Answer 1

Your answer would be the first option "Uranium is not the only radio-active element." or "A".

What did the Curies demonstrate by studying pitchblende?Uranium is not the only radioactive element.All elements are potentially radioactive.Radium can cause anemia, bone and tissue damage, and death.Uranium salts emit something that can expose photographic film.