Who was Dmitri Mendeleev?
Dmitri Mendeleev was a Russian chemist and inventor who is best known for his contribution to the development of the periodic table of elements. He was born on February 8, 1834, in Tobolsk, Siberia, Russia, and he passed away on February 2, 1907, in Saint Petersburg, Russia. Mendeleev's most significant achievement was the creation and publication of his periodic table in 1869. He organized the known elements at the time based on their atomic masses and grouped them based on their similar chemical properties, arranging them in a tabular format. This layout allowed for the identification of patterns and relationships among the elements, leading to the discovery of missing elements and the prediction of their properties. One of Mendeleev's most famous moments came when he left gaps in his periodic table to account for undiscovered elements. He accurately predicted the properties of these missing elements, including their atomic masses and chemical behaviors. When some of thes...