Metal.

Q7. What is a metal?

Ans. Most people can recognize a metal. It is hard, dense and shiny and goes ‘ping’ when you strike it with something else made of metal. It also conducts both electricity and heat well. Chemists define a metal as an electropositive element, which basically means that metals easily lose negatively charged electrons. It is these lost,’ free’ electrons that makes metals such excellent conductors of electricity.