Download Chapter 3 Test - Ralston High School

Chapter 3 Practice Test
Definitions that may be on the test
Law of Definite Proportions, Law of Multiple Proportions, Law of Conservation of Mass,
Pauli Exclusion Priciple, Electron, Nucleus, Proton, Neutron, Atomic Number, Mass
Number, Isotope, Orbital, Electromagnetic Spectrum, Ground State, Excited State,
Quantum Number, Aufbau Principle, Hund’s Rule, Atomic Mass, Mole, Molar Mass,
Avagadro’s Number
Short Answer
1. What was the difference between Aristotle and Democritis’ view of matter and
why was Aristotle’s view more accepted even though it was farther from reality?
2.
What are the 5 postulates in the Dalton’s Atomic Theory and mark which ones
were proven wrong with an X?
Describe two of J.J. Thompson’s cathode ray tube experiments and what they
proved.
4. Describe Ernest Rutherford’s gold foil experiment and what it proved.
3.
5. Describe Ernest Rutherford’s nuclear model of the atom, explain who’s model
replaced it, and what part of the original model was proven wrong.
6. Describe J.J. Thompson’s plum pudding model of the atom, explain who’s model
replaced it, and what part of the original model was proven wrong.
7. Describe the process of an atom emitting it’s line emission spectrum.
8. What four properties of an electron are the quantum numbers are describing?
Problems (show all work if applicable)
9. Complete the orbital notation for the element Iron.
10. Complete the full electron configuration for the element Erbium.
11. Complete the Noble Gas notation for the element Antimony.
12. How many atoms are found in 32.45 moles of Copper?
13. How many moles of Titanium are found in 49.24 grams of Telurium?
14. How many molecules are found in 9245 grams of sucrose (C12H22O11)?
15. Complete the following table.
Name
Symbol
Protons
Neutrons
Electrons
Barium-138
106
47
Ag