Hakcipta Terpelihara.

MATTER

Definition of matter

Particle Theory and Kinetic Theory of matter

Type of matter particles

States of matter The changing of states of matter

Matter is substances having mass and volume.

Matter consists of very smalland discrete particles. The Collision of particles is elastics.

Proof: The diffusion in solid, liquid and gas.

Examples:1. Diffusion of bromine in air.2. Diffusion of copper sulphate in water.3.

State of matter and comparison between the states of matter

SOLID

GAS

MeltingFreezing

LIQUID

Experiment:HeatingNaphthalene

Experiment: To estimate the molecular size of an oil molecule

1.2.3.

Character Solid Liquid Gas1.Particles arrangement2.Particles vibrating, moving movingMovement rotating randomly, randomly

vibrating, vibrating,rotating. rotating.

3.Particles energy Low moderate high4.Attractive force Strong moderate Weak

T.2.1

Hakcipta Terpelihara.

ATOMIC STRUCTURE

History of atomic model

Subatomic particles

Proton number & Nucleon number

Symbol

J. Dalton

J.J. Thompson

E. Rutherford

Neils Bohr

J. Chadwick

Element symbol:Example: H, He, N, Na, Ne etc.

Atomic symbol: Example:

X

A

XProton number (Z) = Num. Of proton in an atom

Nucleon number; A = Number of proton+ Number of neutron.

Example: Calculation: n = A-Z

T.2.2

-11/1837eElectron

01nNeutron

+11PProton

Relative charge

Relativemass

SymbolSubatmicparticle