Metals, Metaloids, Non Metals Online version Classify the different elements on the Periodic Table by Aaron Stinson 1 Metalloids 2 Metals 3 Non-metals Properties of metals and non metals Conductivity is based on conditions Brittle form a diagonal line on the periodic table Conduct heat Conduct electricity Shiny 75% of the periodic table Strong, hard and malleable Mostly gases Not good conductors of heat or electricity Not malleable or ductile Lower density than metals Right side of the Periodic table Lower melting and boiling points