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 ...

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 ...

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 ...

A technical paper titled “Two-dimensional ferroelectricity in a single-element bismuth monolayer” was published by researchers at National University of Singapore, Zhejiang University, Tianjin ...

Inorganic chemistry is that chemistry which deals with the synthesis and behaviour of inorganic and organ metallic compounds. This part of chemistry covers all chemical compounds except the myriad ...

Everything that has mass and which occupies space is called 'matter'. The universe is constructed with matter and energy. Matter is made of very small particles and is constantly dynamic. It is ...