Electronegativity: In the world of chemistry, electronegativity is often considered to be an important topic. As you might be already aware, periodic trends are observed in various aspects such as ...

Creating mnemonic phrases can help you remember the order of elements, especially for the first 20 elements or specific groups. These phrases are general and are available on other free online sources ...

A list of all chemical elements known to mankind sorted by the number of protons they contain within the atom. There are 118 elements starting with hydrogen, which has one proton. The first 94 are ...

A century and a half ago, a Russian chemistry professor published a classification of all the known elements, organized by atomic weight. Today, the system that he created for his students — plus some ...

Cations are ions that are positively charged. Anions are ions that are negatively charged. Ions are charged atoms or molecules. If a balanced atom loses one or more electrons, it will become a ...

The strongest permanent magnets today contain a mix of the elements neodymium and iron. However, neodymium on its own does not behave like any known magnet, confounding researchers for more than half ...

COLLEGE STATION – To many of us, the mere mention of a “periodic table” conjures up pop quizzes, dread and the queasiness associated with past ninth grade chemistry classes dealing with the famous ...

The periodic table captures a subtle pattern that runs through the chemical elements, the fundamental building blocks of everything around us: from the aluminium in bike frames to the xenon gas in ...