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, ...

THE merits of a book on atomic and molecular structure can be judged by a very simple test. If the book merely gives an account of the personal views and impressions of the author, in the form of a ...

In a recently published article in the "Proceedings of the National Academy of Sciences" (PNAS), the scientists look back to the beginnings of the periodic system, whose structure is characterized by ...

Scientists had long tried to come up with a system for predicting the properties of materials based on their chemical composition until they set sights on the concept of a chemical space that places ...

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.

Catalysts that could recycle carbon dioxide into clean fuel. Compounds that could boost the power of batteries. Proteins that could transform how we treat disease. Every day, scientists hunt for new ...