The film discusses the classification of matter into homogeneous and heterogeneous types, focusing on elements, compounds, and mixtures. It explains the properties of two elements, iron and sulfur, ...

In chemistry, we have He, Fe and Ca — but what about do, re and mi? Hauntingly beautiful melodies aren’t the first things that come to mind when looking at the periodic table of the elements. However, ...

You may have noticed that the rock formations are very different colors. The rock formations on the left are from Red Rock State Park in Texas, and on the right is El Capitan Mountain in Yosemite ...

A new model rectifies the long-standing deficiencies of the electronegativity concept.

One of the rarest and most mysterious elements in the periodic table has finally given up some crucial chemical secrets, eight decades after its discovery. Researchers at Oak Ridge National Laboratory ...

There are 17 rare earth elements on the periodic table, but a better name for them would be the "troublesome earths." Here's why. When you purchase through links on our site, we may earn an affiliate ...

Scientists have coaxed one of the universe’s most stubborn elements into a new compound. Formed under intense pressures, the newly discovered compound packs helium atoms into crystalline iron, ...

Science is frequently a collaborative discipline. But sometimes, one person, working alone, makes a stunning discovery that changes a scientific field forever. Neil Bartlett, while working alone in ...

Scientists accidentally created a new compound called gold hydride, showing how extreme conditions can push familiar materials into unfamiliar forms. Gold Hydride challenges assumptions about noble ...

For five years, Dr. B. Smith Hopkins, professor of inorganic chemistry at the University of Illinois, had been searching through a gathering of old friends and nodding acquaintances to discover one of ...