Please define the following words
Russian scientist,
Dmitri mendeleev
Russian scientist: A person who is involved in scientific research and exploration in Russia, studying various fields such as chemistry, biology, physics, mathematics, and more.
Dmitri Mendeleev: A Russian chemist who is best known for creating the periodic table of elements in 1869. He arranged the 63 known elements at that time into a logical order based on their atomic weights and chemical properties. Mendeleev's periodic table laid the foundation for the modern periodic table used in chemistry today.