1. Which of the following statements is not true of the atomic model proposed by Bohr?

2. Which model shows the possibility of an electron to be discovered in several locations around the nucleus?

3. In the quantum mechanical model three physicists led the event of a much better model of the atom, except:

4. Heisenberg found that a tiny particles site and movement cannot be exactly recognized, this can be often called the uncertainty principle. What particle is demonstrated by the uncertainty principle?

5. It is the region of space around the nucleus where the electron is most probable to be observed.

6. Louise de Broglie, Erwin Schrodinger, and Warner Karl Heisenberg. De Broglie suggested that the electron ( which is thought of as a particle) could also be believed as a 

7. Heisenberge found that for a very tiny particle like the electron, its site cannot be exactly recognized and how it is moving. This is called the ______________ principle.

8. Bohr's model of an atom isa called ____________ atomic model since it describes electrons as "orbiting " around the nucleus much like planet orbit the sun.

9. According to De Broglie, an electron can behave as both a  wave and  a ______ according to his theory.

10. The smallest possible amount of matte which still retains its identity as a chemical element, consisting of a nucleus surrounded by electrons.