Untitled timeline

Print

Main

Carl Axel Arrhenius discovered Yttrium in Sweden

1787

Russian chemist Dmitri Ivanovich Mendeleev discovered Germanium

1869

Jj Thompson discovers Electrons in Cambrige, England

1897

Xenon was discovered in England by the Scottish chemist William Ramsay

1898

Ernest Rutherford discovers the Nucleus in Manchester, England

1911

Ernest Rutherford discovers Protons in Manchester, England

1920

James Chadwick discovers Neutrons in Manchester, England

1932