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PERIODIC TABLE (CHAPTER 6), An atom consists of three subtomic particles,…
PERIODIC TABLE (CHAPTER 6)
ATOM AND MOLECULE
An atom cannot be seen with our naked eyes because its size is too small
COMPOUND
Method of separation
Electrolysis
Changes in substance
Physical change
Chemical change
MIXTURE
Separation method
Filtration
Distillation
Separation by using magnet
Sedimentation
Floatation
Chromatography
Periodic Table
Semi-Metal
Sillicon, Arsenic
Non-Metal
Lodine, Chlorine, Sulphur, Carbon
Dull, Brittle, Non-malleable, Low tensile strength (easily break), Poor electrical conductivity, Poor heat conductivity Low density
Mental
Aluminium, Iron, Copper, Zinc
Shiny, Ductile Malleabble, High tensike strength, Good electrical cnductivity, Good heat conductiity, High density.
An atom consists of three subtomic particles, which are :
Electron
Proton
Neutron
An atom only can only be seen using an electron microscope by enlarging the atom to a million times