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 ...

This article brings you the CBSE Class 9 Science Notes for Chapter 3 - Atoms and Molecules. These chapter notes are prepared by the subject experts and cover every important topic from the chapter. In ...

Elements and Compounds: Understanding elements and compounds is basic knowledge to study chemistry. Elements are the basic building blocks of matter, while compounds are substances formed when two or ...

A collaborative effort from researchers at the Lawrence Livermore National Laboratory (LLNL), Sandia National ...

A research team has discovered clusters of aluminum atoms that have chemical properties similar to single atoms of metallic and nonmetallic elements when they react with iodine. The discovery opens ...

Chemical reactions occur when elements or compounds combine and create new compounds. Elements are substances that contain only one type of atom and are represented by unique symbols on the periodic ...

Changing the chemistry of a compound is difficult by itself, but modifying materials only a few atoms thick is its own challenge. A group of University of Chicago scientists announced an innovative ...

When you eat food, drink liquids, or even breathe in the air, many of those atoms wind up getting incorporated to your body. When you sweat, exhale, and either secrete or excrete matter from your body ...

There are lots of different substances but only just over a hundred elements. An element is a substance that is made up of only one kind of atom. The atoms in a particular element are the same as each ...