February 7 is National Periodic Table Day, when we celebrate the efforts of scientists over the centuries to figure out how different elements ...

Jenni Fink is a senior editor at Newsweek, based in New York. She leads the National News team, reporting on politics and domestic issues. As a writer, she has covered domestic politics and ...

The periodic table of elements (often known simply as the periodic table) has been helping scientists with their work for a little over 150 years. The handy visual reference guide organizes known ...

For every high school student who has thought that chemistry was over their head, Kristin Straumann has an answer. It is. At least it is for students in Strau-mann’s classroom at ...