Show:
Scientists
Experiments
Discoveries
Atomic Models
The Atom
100
Wrote the first atomic theory.
Who is Dalton?
100
Experiment that helped discover the nucleus. Positive alpha particles were deflected in all directions when shot at various metals.
What is gold-foil experiment? (Rutherford)
100
Word meaning indivisible.
What is the atom?
100
Thompson's model of the atom with positive and negative charges mixed throughout a sphere.
What is the plum pudding model?
100
The man responsible for creating the idea that at some point matter can no longer be divided.
Who is Democritus?
200
Discovered the neutron.
Who is Chadwick?
200
Experiment that helped Millikan discover the charge and mass of the electron.
What is the oil-drop experiment?
200
The atomic models states that all matter is made up of atoms and atoms can...
What is separate, rearrange and combine?
200
Rutherford's model of the atom with electrons on the outside and a positively charged center.
What is the nuclear model?
200
The negatively charged subatomic particle found on the outside of the atom.
What is the electron?
300
Discovered the electron.
Who is Thompson?
300
Experiment showing rays move from the negative electrode to the positive electrode. Proving there are negative particles in the atom.
What is the cathode ray tube experiment?
300
Bohr believed that electrons could be found in these, not just randomly spread throughout the atom.
What are fixed orbitals?
300
Schrodinger and Heisenberg's model of the atom that shows the most probably location of the electrons and a positive center.
What is the quantum model?
300
The neutral subatomic particle found in the center of the atom?
What is the neutron?
400
Discovered the nucleus of the atom.
Who is Rutherford?
400
Scientists who worked with mathematics instead of traditional experiments.
Who is Schrodinger and Heisenberg?
400
Schrodinger believed that electrons act like both _____ and ____ giving them unique properties.
What is waves and particles? Wave-Particle Duality
400
Bohr's model of the atom with electrons orbiting the nucleus.
What is the planetary model?
400
The positively charged subatomic particle found in the center of the atom.
What is the proton?
500
Scientist who believed the location and speed of an electron can only be estimated.
Who is Schrodinger and Heisenberg?
500
Experiments in which Bohr worked with light.
What is spectroscopy?
500
Heisenberg's believe that the location and speed of an electron cannot be known for sure.
What is the uncertainty principle?
500
Draw and label the atom. Include the following parts; proton, electron, neutron, nucleus and electron cloud.
See Board.
500
The dense positively charged center of an atom.
What is the nucleus?