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Polonium and radium I believe

Marie Curie was an eminent scientist who researched radioactivity. The atomic theory was deduced by the laws of Marie Curie's experiments.

What is the atomic theory?

The atomic theory is the arrangement of the subatomic particles and their properties. It describes the formation of a product in a chemical reaction and compounds.

The radioactive property of the elements described the indivisible property of the atomic model structure. The experiments and discovery of the thorium led to the arrangement of the atom.

It was deduced that radioactivity is independent of the atomic arrangement in a molecule but is dependent on the atoms themselves.

Therefore, atomic theory was formed from the law of Marie Curie's experiments.

Learn more about Marie Curie here:

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