Who developed the first periodic table?
The German chemist, Lothar Meyer, developed the first Periodic Table in 1864.
The Russian chemist, Dmitri Mendeleev, published his Periodic Table in 1869.
Both Mendeleev and the German chemist, Lothar Meyer, were working independently to develop a Periodic Table.
Neither knew of the work of the other.
Lothar Meyer produced several Periodic Tables between 1864 and 1870, but he didn’t publish until 1870.
Mendeleev published in 1869, so he gets credit for developing the first Periodic Table.