Question

if anyone ans me i will mark him brainleast . who was the founder of modern system of symbol for element.​

Answer 1

The founder of mordern system of symbol for element is Dmitri Mendeleev.

Answer 2

Antoine Lavoisier (1743-1794) introduced the system of chemical nomenclature. His Traité Élémentaire de Chimie (1789) was the first modern chemical textbook, and presented a unified view of new theories of chemistry.

Dmitri Mendeleev presented his periodic table of the elements based on increasing atomic weight on March 6, 1869, in a presentation to the Russian Chemical Society.