Non-Metal - GCSE Chemistry Definition

A non-metal is an element that usually has properties opposite to those of metals. Non-metals are generally:

• Poor conductors of heat and electricity

• Dull in appearance and low in density

• Gases or brittle solids at room temperature

Unlike metals, non-metals do not easily lose electrons, so they often form covalent bonds or gain electrons to form negative ions in reactions. Common examples include oxygen, carbon, and nitrogen, which are important in both living organisms and the atmosphere. Non-metals are found on the right side of the Periodic Table and play key roles in many chemical processes.