The Particle Modle Flashcards
1
Q
Limitations of particle model
A
- does not show true size of particles
- does not show electro static forces between particles
- doesn’t show true distance between particles
2
Q
How are solids arranged
A
- vibrate around a fixed point
- regular arrangement in a straight line
- very close together
3
Q
How are liquids arranged
A
- particles close together
- random arrangement but all ways touching
- they are able to move around eachother
4
Q
How are gases arranged
A
- particles are randomly arranged
- particles are far apart and don’t touch
- the particles move around quickly in all directions
5
Q
What does the particle model show?
A
- The particle model shows how the particles that make up a substance are arranged, and how they move and interact with each other. The particles are represented as solid spheres, all of the same size
6
Q
How are particles held together
A
Particles are held together by electrostatic forces
7
Q
How do you calculate the ratio of distance to diameter
A
Ratio of distance to diameter = distance between atoms / diameter of atoms
8
Q
Why can’t you compress a liquid
A
You can’t compress a liquid because the particles are all already touching and are close together, but they can still move around each other
9
Q
What does the particle model show
A
The particle model shows atoms in substances as small spheres, and represents how they are arranged and how they move and interact with each other
