Particles
Positively charged particles are now called
Protons
What experiment was used by both Dalton and Thomson?
Cathode Ray Tube
What was the name of Democritus' atomic model?
The Solid Sphere Model
This philosopher believed that atoms could not be cut.
Democritus
The science of matter
Chemistry
Negatively charged particles are now called
Electrons
What experiment did Rutherford use to discover the nucleus?
The gold foil experiment
What was the name of Bohr's atomic model?
The Planetary Model
This philosopher believed that everything was made up of the 4 elements.
Aristotle
What is the basic building block for all matter in the universe?
The atom
Neutron
How did Schrodinger and Heisenberg come up with their models?
Math/probability
What was the name of JJ Thomson's atomic model?
The Plum Pudding Model
This scientist added neutral particles to the atomic theory.
Sir James Chadwick
Atoms are really, really...
Small
Protons and neutrons make up what part of the atom?
The nucleus
Why was Bohr's model not exactly correct?
Electrons jump energy levels
What was Ernest Rutherford's atomic model?
The Nuclear Model
These 2 scientists developed both the electron cloud model and the quantum model.
What is the theory that explains our understanding of how the atom has changed over time?
Atomic theory
What 3 things are included in the atom?
Protons, neutrons, and electrons
Chadwick found that neutrons were about ___________ in radiation to the proton.
Equal
What is the name of the model that shows the probability of an electron being in a certain location of an atom?
The Electron Cloud Model
This scientists discovered that atoms have electrons and developed the plum pudding model
JJ Thomson
What is something that is found through observations of the natural world and supported through the scientific method?
Theory