- all matter is composed of atoms which are too small to be seen and can’t be split up more
- there is a void/empty space between atoms
- changes of matter occur through the movement of atoms, therefore there must be a space devoid of matter through which
they can move
- atoms are completely solid
- Leucippus- the word atom come from the Greek word “a-tomos” which means “indivisible”
- Atoms are homogeneous with no internal structure
- They are the same all the way through
- Atoms differ in size and shape
- The properties of matter are due to the properties of the atoms they contain
- Ex: bitter matter is made of sharp atoms while sweet matter is made of smooth atoms
