Atomic Theory Worksheet
Atomic Theory Worksheet
Atomic Theory Worksheet
Draw below the model of the atom proposed be the following individuals
The gold foil experiment resulted in two major discoveries which were made about the
structure of the atom. What were they?
1.
2.
How is an atomic spectra produced? Use the terms ground and excited state electrons in
your answer.
How does the Bohr model represent electrons around the central nucleus? Why (think of
spectra)?
The modern model of the atom is called the wave mechanical model. In the wave
mechanical model electrons are located around the nucleus based on the probability of
finding an electron in a certain area. These areas are called
Magic Number
______
1. Represented by a symbol; all are found on the Periodic Table
2. Made a mental model of the atom; Greek philosopher
3. Used by Rutherford in his experiment; made of two protons and two neutrons
4. The paths in which electrons circle the nucleus according to the Bohr model
5. The positive particle in the nucleus of an atom
6. The tiny positive core of an atom; contains protons and neutrons
7. Formed the atomic theory model of the atom; English schoolteacher
8. Discovered the nucleus using his gold foil experiment
9. Current explanation of where electrons might be found in the atom
10. Used by scientists to explain something we can not see or understand
11. The smallest particle of an element that has the properties of that element
12. Discovered the neutron
13. Current model of the atom; proposed by Schrodinger
14. Mass of protons and neutrons
15. Developed the model of the atom in which electrons orbit the nucleus in energy levels
16. The negative particle that circles the nucleus
17. The neutral particle in the nucleus of an atom
18. Proposed the “plum-pudding” model of the atom; discovered the electron