Students learn to describe the pattern in atomic number, atomic mass and atomic radius. Trends on the Periodic Table: Students learn to describe the pattern in atomic number, atomic mass, atomic ...

ALLENDALE, Mich. — It's National Chemistry week, and the American Chemistry Society's West Michigan branch is celebrating in a record-breaking way. In honor of the 150th anniversary of the periodic ...

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 ...

Volunteers at Wayne State University in Detroit had been braving the elements for hours on an October morning. The wind chapped cheeks and numbed fingers as volunteers wrangled giant blue tarps with ...