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Extras

    Video thumbnail: The Mystery of Matter Next on Episode 2 | Marie Curie

    The Mystery of Matter

    Next on Episode 2 | Marie Curie

    Learn why the discovery of radioactivity shatters the order of the Periodic Table.

    Next on Episode 2 | Marie Curie

    Video thumbnail: The Mystery of Matter Next on Episode 2 | Dmitri Mendeleev

    The Mystery of Matter

    Next on Episode 2 | Dmitri Mendeleev

    Follow the story of Dmitri Mendeleev's invention of the Periodic Table.

    Next on Episode 2 | Dmitri Mendeleev

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