periodic table

Events

Ancient peoples discovered elements like gold, silver, copper, lead, iron, tin, sulfer, carbon, mercury, and zinc

9,000 BC - 1 AD

Lavoisier developed a periodic table list that separated metals from nonmetals.

1700

Berzelius is credited with identifying the chemical elements silicon, selenium, thorium, and cerium

1818

Döbereiner also is known for his discovery of furfural, for his work on the use of platinum as a catalyst, and for a lighter, known as Döbereiner's lamp.

1829

Newlands put forward his law of octaves for the periodic table

1864

Mendeleev attempted to arrange the 63 known elements in order of increasing atomic mass. Also, using an element’s density, Mendeleev could calculate its atomic volume.

1869

Meyer is known for the classification of the elements

1870

Ramsay introduced a whole new group to the periodic table, variously called over time the inert, rare, or noble gases.

1892

Rutherford studied how certain elements naturally decay into other elements.

1900

Meyer Added the atomic number to the elements

1913

Luis made a diagram of the selected elements

1916

Seaborg identified eight elements

1944 - 1958