mendeleev
pokemon
Mendeleev discovered old periodic table. He arranged elements in order of atomic masses.
The 19th century.
the oldest known element in periodic table is copper -8000 years old know element thank you
There is no oldest table in the world, unless you still have your old crumpled up table. Then thats your oldest table.
he drew up a table that grouped elements according to their atomic weights, his table became the basis for the periodic table of elements used today.
No, it is not true.
something to do with protons and stuff.
it's presence is known from ancient times.
Ancient times since 6000 B.C.
Dmitri Mendeleev published his periodic table in 1869.
Dmitri Mendeleev is credited with creating the first periodic table of elements in 1869 after noticing a recurring pattern of properties when arranging elements by atomic mass. Johann Wolfgang had no direct involvement in the discovery of the periodic table.