Question

What is the definition of non metals?

Answer 1

Non-metals are those which lack all the metallic attributes. They are good insulators of heat and electricity. They are mostly gases and sometimes liquid. Some they are even solid at room temperature like, Carbon, sulfur and phosphorus.
Physical Properties of Non-Metals:
Ductility is the property of the material to be stretched into wires but non metals are not ductile except for carbon, as carbon fibers finds uses in a wide variety of industries including sports and music equipments. Another property characteristic to metals is absent in non-metals called malleability. They can’t be drawn into sheets are they are brisk and break on applying pressure.
They are not lustrous as they do not have any shiny appearance.
They are not sonorous and do not produce a deep ringing sound when they are hit with another material. They are also bad conductors of heat and electricity except for graphite.