# Particle Model of Matter

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Who discovered the nucleus?
Ernest Rutherford
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What is the Plum Pudding Model and who came up with it?
The Plum Pudding model is a model where the positive electrons are represented by dough and the negative electrons are the raisins. This model was created by J.J Thomson
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What are particles with no charge called?
Neutrons
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What did Niels Bohr discover?
Electrons orbit a nucelus at fixed distances
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When the electromagnetic radiation consumes an electron it drops closer to the nucleus
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When an atom electromagnetic radiation the electron movement increases making it further away from the nucleus.
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What can be emitted by atoms to change the electron arrangement in an atom?
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Potential Store
The energy in an object comes from the bonds between particles
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Kinetic Energy
Kinetic energy comes from the random motion of particles. The temperature of the body is measured by the energy in the kinetic stores in the particles. Increasing the temperature in the body particles.
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Change in Thermal Energy
E = mcΔT, where "E" represents the thermal energy, "m" indicates the substance's mass, "c" denotes the specific heat and "ΔT" signifies the temperature difference.
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E = mcΔT
E= Energy, M=Mass, C=specific heat capacity, ΔT=temperature difference
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Specific Latent heat of vapourisation
specific latent heat= energy change/ change in mass
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Specific latent heat of fusion
specific latent heat= energy change/ mass
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Solids, Liquids and Gases
Gases can be compressed because their particles are far apart. Liquids can't be compressed because the particles are already close together and solids cannot because their particles are fixed together
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Equation for change in momentum
Change in momentum= force x time =impulses
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Equation for Density
Density= mass/volume
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## Other cards in this set

### Card 2

#### Front

What is the Plum Pudding Model and who came up with it?

#### Back

The Plum Pudding model is a model where the positive electrons are represented by dough and the negative electrons are the raisins. This model was created by J.J Thomson

### Card 3

#### Front

What are particles with no charge called?

### Card 4

#### Front

What did Niels Bohr discover?