LA Times (January 31)
2019/ 02/ 01 by jd in Global News
Though the periodic table may seem “obvious today…it wasn’t to generations of early chemists. One hundred and fifty years ago, “that changed when Dmitri Mendeleev started writing a textbook and pondered ways to group the elements together in order to lighten his load.” The resulting periodic table “has become an icon of science. Its rows and columns provide a tidy way of showcasing the elements — the ingredients that make up the universe.”
