Discovery of Elements

Discovery of Elements - Inert Gases

Element Discoverer
Argon Sir William Ramsay and Lord Rayleigh
Neon Sir William Ramsay and M.W. Tavers
Krypton Sir William Ramsay and M.W. Tavers
Xenon Sir William Ramsay and M.W. Tavers
Radon Sir William Ramsay and R. Whytlaw-Gray
Helium Sir William Ramsay, P.T.Cleve and N.Langlet

Discovery of Elements - Radioactive Elements

Element Discoverer
Polonium Marie Curie
Radium Marie Curie and Pierre Curie
Actinium Andre Louis Debierne
Thorium Jons Jacob Berzelius
Uranium Martin Heinrich Klaproth
Plutonium Glenn T. Seaborg, Edwin McMillan, Joseph W. Kennedy, and Arthur Wahl

Discovery of Elements - Chemical Elements

Chemical Element Discoverer
Barium Humphry Davy
Calcium Humphry Davy
Potassium Humphry Davy
Magnesium Humphry Davy
Boron Humphry Davy
Sodium Humphry Davy