Elements

7 periods, 9 groups

Metals

shiny, malleable, ductile

Non-metals

dull, brittle

different properties form its constitutional elements

fixed in proportion by mass

formed by combustion/decomposition

broken down by :-passing heat-passing electricity

magnetic attraction

filtration

evaporation

distillation

fractional distillation

paper chromatography

no chemical reaction involved

has properties of tis constitutional substances

can be seperated by physical methods

not mixed in fixed proportion

types: - solid-solid eg. alloys- solid-liquid eg. calamine lotion- liquid-liquid eg. vinegar- liquid-gas eg. soda drinks- gas-gas eg. air

Solution

dilute, concentrated, saturated

homogeneous appearance

a mixture that appears to be made up of one substance

Suspension

a mixture in which 2 or more parts can be seen

Rate of solubility

temperature

nature of solvents

nature of solute

Rate of dissolving

rate of stirring

temperature of solution

surface area of solute