1 jan 1905 ano - 1905 - Discovery of "radiothorium" Hahn discovers "radiothorium", which is now known as thorium-x, an isotope of thorium. An isotope is a variant of an element with a different number of neutrons, but the same number of protons and electrons as that element. This discovery was made while working alongside Sir William Ramsay at University College in London.
Adicionado na linha do tempo:
Data:
1 jan 1905 ano
Agora
~ 120 years ago