C1.1.1 Flashcards
What is a particle?
A particle is a tiny bit of matter
What is matter?
The thing that everything is made of
What are people that study chemistry called?
Chemists
What is the particle model?
A model which describes how particles are arranged
Describe the particle model of a solid
The arrangement of particles is regular
The relative distance between particles is very close
The main movement of the particles is vibrating about fixed positions
Describe the particle model of a liquid
The arrangement of particles is random
The relative distance between particles is close
The main movement of the particles is moving around each other
Describe the particle model of a gas
The arrangement of particles is random
The relative distance between particles is far apart
The main movement of the particles is moving quickly in all directions
What is the only state of matter that to can compress?
Gas
Which state cannot flow?
Solid
Why do solids have a fixed shape and are unable to flow?
Their particles are close together and cannot move from place to place
