Metals are the only substances that are magnetic. But some metals are magnetic and some are not. The most common magnetic metal is iron. You don't see too many objects made of pure iron but you do see ...

Scientists have long known that metals play an important role in life. Tiny amounts of metals help living organisms perform ...

Atomic number 24, atomic weight 51.996. Cast iron contains high levels of carbon, which makes it a hard, brittle metal. Cast iron was commonly used throughout Europe to make church bells and ...