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1.Particulate Nature of Matter
IGCSE CHEMISTRY CAMBRIDGE
Notes :
State the distinguishing properties of solids liquids and gases
Matter in all states is made up of particles
Particles forming matter can be represented by small solid spheres.
Solid particles :
have a regular arrangement and are close together
They have a fixed pattern ; they only vibrate in their position.
Liquid particles :
have a random arrangement they are close together
They have no fixed pattern ; they slide past each other
Gas particles :
have a random arrangement , they are far apart from each
other and they have no fixed pattern or shape , they move rapidly and randomly.
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A Solid has a definite shape and volume but can not flow
A Liquid has a definite volume but has no fixed shape as it takes the shape of the container and it can flow
A Gas has no definite shape or volume , it can spread everywhere through the container
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