5 Written Questions

1. quantum theory- e=hv. figured out that electron magnetic energy is quantized for a given frequency of radiation (or light)
2. path of electron in hydrogen atom cannot be determined precisely but probably, like fireflies flying around a room
3. the model of the atom created by JJ Thomson, consists of electrons on the surface of a positively charged sphere
4. discovered atomic theory: elements made of atoms, compounds 2+ different atoms, atoms cant be destroyed, same atoms are same.
5. each orbital in a sub level is filled singlely before it doubles

5 Multiple Choice Questions

1. bombarded atoms w/ alpha particles, and noticed beam of radiation. The beam had no charge, and the molecules had mass
   1. Dalton
   2. Planck
   3. Curie
   4. Bohr
2. accurately discovered charge of an electron
   1. Curie
   2. Planck
   3. Millikan
   4. Dalton
3. model later proved wrong by Heisenberg. planetary model- said that electrons move around the nucleus in energy levels and its called the planetary model because the e- orbit the nucleus like the planets orbit the sun
   1. Curie
   2. Bohr
   3. Dalton
   4. Planck
4. first to state that electrons are building blocks of atoms
   1. Dalton
   2. J.J. Thomson
   3. William Thomson
   4. Millikan
5. Rutherford's experiment involving shooting alpha particles at gold foil and observing them going through and bouncing off determining that the nucleus of an atom has a positive charge
   1. Heisenberg
   2. Dalton
   3. gold foil experiment
   4. Millikan

5 True/False Questions

1. Heisenberg → discovered nucleus had positive charge- protons. did gold foil experiment

   True        False

2. Chadwick → interpreted Curie's idea and called them neutrons

   True        False

3. Schrodinger & Broglie → wave/mechanical model and discovered orbitals

   True        False

4. J.J. Thomson → discovered isotopes and electrons. plum pudding model

   True        False

5. Rutherford → discovered nucleus had positive charge- protons. did gold foil experiment

   True        False