Differences between metals and non - metals

DIFFERENCES BETWEEN METALS AND NON-METALS

Properties of metals

Strong
Malleable and ductile
React with oxygen to form basic oxides
Sonorous
High melting and boiling points
Good conductors of electricity
Good conductors of heat
Mainly solids at room temp. Exception mercury - liquid at room temp.
Shiny when polished
When they form ions, the ions are positive
High density Properties of Non- metals  Brittle React with oxygen to form acidic oxides Dull sound when hit with hammer Low melting and boiling points Poor conductors of electricity Poor conductors of heat Solids, liquids and gases at room.temp. Dull looking When they form ions, the ions are negative - except hydrogen that forms a positive ion, H+. Low density http://www.youtube.com/watch?v=JR4d08DaPz4

Hi Guyz....I'm Paveen...Class 1E3,....
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