E.C.M

ELEMENT

ELEMENT

• Substance that can't be broken down
• Made up of only one type of particle
• Every element has its set of characteristic properties
• Classified by its properties
• Shares the properties of other elements in the group

The three group in Elements are
Metals, Nonmetals & Metalloids

EXAMPLE OF ELEMENTS

COMPOUND

COMPOUND

• Pure substance made of 2 or more elements that are chemically combined
• Have to go through a chemical change to become a compound
• New substance has different properties from the element that form it
• Elements join in s specific ratio ( ex: H2O = H:O = 2:1 )
• Compounds can be broken by chemical changes

EXAMPLE OF COMPOUNDS

MIXTURE

MIXTURE

• Combination of 2 or more substance not chemically combined
• Each substance keeps its original indentity
• Can be separated ( Distillation, Magnet & Centrifuge )

3 TYPES OF MIXTURES

EXAMPLE OF MIXTURE

METALS FOR ELEMENT

• Always shiny
• Good conductors of thermal energy and electric current
• Malleable ( sheets ) Ductile ( wire )
• Examlpe of Metals: gold & silver

NONMETALS FOR ELEMENT

• Always dull
• Poor conductors of thermal energy and electric current
• Non malleable & Brittle
• Example of Nonmetals: neon, graphite & sulphur

METALLOIDS FOR ELEMENT

• Always be Malleable and ductile
• Shiny or dull
• Have properties of both metals and nonmetals
• Semi conductors
• Some conduct thermal energy and electric current ( Boron & Silicon )

SOLUTION FOR MIXTURE

• Appears to be One substance but is really 2 or more
• Particles are very small
• Substance dissolved : solute
• Substance in which solute is dissolved : solvent
• Example of Solutions: Air, Brass & Salt water

COLLOIDS FOR MIXTURE

• Share properties of solution and suspension
• Particles are dispersed evenly but not settle out
• Example of Colloids: jello, whipped cream & fog

SUSPENSION FOR MIXTURE

• Particles do not dissolve
• Large enough to block light
• A mixture in which particles are big enough to settle out