Most metals share a lot of properties, such as being good conductors of heat and electricity. Non-metals often have the opposite properties. For example, they are usually poor conductors of heat ...

The observations which led Beilby to formulate his famous conception of the vitreous nature of this layer were not, however, confined to metals, but had also been made with non-conducting crystals ...

Our bodies require other elements, including non-metal elements such as phosphorus (P), sulphur (S) and chlorine (Cl), and metal elements like potassium (K), sodium (Na), calcium (Ca) and ...