THE SMALLEST PARTICLES – MOLECULES
Molecules consist of atomics.
On the trafts atomics are usually shown as small circles, which located next each
other.
Sometimes the symbol of some chemical element is written into circle and by
colouring the same atomics is used the same colour.
Do you know what candles are made of?
Candles are made of paraffin.
The molecules of paraffin consist of carbonic and hydrogen atomics.
There are 38 hydrogen and 18 carbonic atomics in the molecule of paraffin.
PARAFFIN
–
C18H38
Draw a molecule of paraffin here, using figures and two colours!
If you like, find some more molecules to draw in the same way!
Here is the example of water
molecule H20
A molecule of water consists of
3 atomics – two similar, one
different.
Water consists of hydrogen (2
atomics) and oxygen (1 atomic).
PARAFFIN
THANK YOU!
CHEMISTRY TEACHER PIIA ILVES (ESTONIA)