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, ...

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.

A South Korean research team has developed a model that can predict compound structures 'intuitively' without complex calculations and has successfully used it to fabricate a semiconductor device.