Sunday, March 1, 2009

igcse chemistry notes -properties of metals and non metals

metals -good conductors of heat and eletricity
non metals-poor conductors of heat and electricity
non metals -dull
non metals -brittle
metals -strong
nonmetals -weak
metals -react with oxygen to form basic oxides
nonmetals-react with oxygen to form acidic oxides
metals-usually high density
nonmetals-usually low density
metals -usually high melting points except alkali
nonmetals-usually low melting points except carbon
metals-many react with dilute acid to produce hydrogen
nonmetals -no reaction with dilute acid

1 comment:

Leslie Lim said...

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