P1.1 - The Particle Model Flashcards
1
Q
Democritus Atom Idea
A
Atoms make up everything, they can’t be seen or destroyed
2
Q
Dalton’s Model
A
Small indestructible sphere, different for each element
3
Q
Thompson’s Model
A
Plum Pudding Model, negative electrons embedded in a positive mass
4
Q
Rutherford Model
A
Tiny, ‘massive’, positive nucleus with negative electrons floating around it
5
Q
Gold Foil Experiment
A
Fired positive Alpha particles at gold foil, most passed through, some were defeated proving theory
6
Q
Bohr Model
A
Nucleus containing protons and neutrons, with electrons orbiting in shells
7
Q
Size of an Atom
A
1x10 to the -10m
