1 jan 1905 ano - Marie and Pierre Curie

Descrição:

Henry shared his discovery with Marie and Pierre Curie. Marie called elements that spontaneously emit radiation radioactive. This radiation came from the nuclei of atoms. When this happens, number of protons in one atom of uranium changes. When it releases radiation it changes to a different element.

Adicionado na linha do tempo:

Data:

Imagens: