DMITRY MENDELEEV PUBLISHED HIS PERIODIC TABLE 150 YEARS AGO
Russian chemistry professor Dmitri Mendeleev published his periodic table in 1869. Mendeleev’s table, dated March 1 1869, was his first published version. He constructed his tables by listing the elements in rows or columns in order of atomic weight and starting a new row or column when the characteristics of the elements began to repeat.
NEW COMMENTS