The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

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

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 ...