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The findings of Henri Becquerel and the Curies helped to discredit what notion held for a very long time? That matter is indivisible and indestructible. Matter is made up of any smaller parts. That matter can never be created or destroyed. Matter is radioactive and decays over time.

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Raulzitos

Answer:

Matter is radioactive and decays over time.

Explanation:

Becquerel and the Curies discovered the radioactivity.

The Curies died because they did a lot of experiments using Radio and other elements.

The other alternatives are concepts that are known for a long time.

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