Everything we can see and touch, and quite a lot that we can’t as well, is made of tiny particles called atoms. Some substances, like particles of this iron, contain only one kind of atom. Iron is an ...

The appearance of oxygen in Earth's atmosphere was a turning point in the history of our planet, forever transforming the ...

Inorganic elements and their compounds are fundamental to medical biochemistry, serving as essential cofactors in enzymatic reactions, regulators of cellular signalling and metabolism, and ...

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 ...

THIS is a handbook on the Practical Chemistry of the Non-metallic Elements, designed to meet the requirements of pupils of Mechanics' Institutions, and of Science Classes of a similar kind. The true ...

Students will learn how to categorize matter as either pure substances or mixtures. Students will apply tests, based on physical properties of matter samples, to determine whether a mixture is ...

Scientists have found the first case of an ionic crystal consisting of just one chemical element -- boron. This is the densest and hardest known phase of this element. The new phase turned out to be a ...

Named after the Greek word barys for "heavy," barium is a relatively dense and reactive alkaline earth metal. It is only found naturally when combined with other elements, and compounds containing ...

At the 235th National Meeting of the American Chemical Society (ACS) in New Orleans, Anshul Samar, a 14-year-old CEO, has introduced Elementeo, a trading card game intended to teach chemistry while ...

A NASA/ESA Hubble Space Telescope image released July 7, 2012, shows U Camelopardalis, a star nearing the end of its life located in the constellation of Camelopardalis (The Giraffe), near the North ...