Name: __________________________________ Date: ________________ Class: __________
Define the following terms, using your notes and textbook readings (try not to use the internet):
Law of Conservation
of Mass
Law of Definite
Proportions
Law of Multiple
Proportions
Atomic Theory
Cathode Rays
Cathode Ray Tube
Electrical Charge
Electrons
Radioactivity
Nuclear
Theory
Mass Number
(A)
Nucleus
Ion
Proton
Cation
Neutron
Atomic Mass
Unit (AMU)
Atomic
Number (Z)
Chemical
Symbol
Isotope
Natural
Abundance
Anion
Main-group
elements
Transition
Metals
Family
(groups)
Noble Gases
Periodic Law
Alkali Metals
Metal
Alkaline Earth
Metals
Nonmetal
Halogens
Metalloid
Atomic Mass
Mass
Spectrometry
Semiconductor
Mole (mol)
Avogadro’s
Number
Molar Mass
1. Explain the progression of the atomic theory and the criticisms that were faced along the way.
2. Compare and contrast the Law of Definite Proportions and the Law of Multiple Proportions
3. What are the three subatomic charges? Describe them and explain (be able to) calculate them.
4. What are “main-group elements”? What are the group numbers of each we discussed?
5. What is the importance of Avogadro’s Number? How can this be used to quantitatively describe
and calculate atoms/molecules/ions?
6. Complete the following questions from your textbooks. Use the list to cross out your progress.
Page 77-81 #1, 2, 3, 4, 5, 6, 8, 9, 11, 12, 13, 16, 18, 19, 21, 22, 22, 23,
24, 26, 29, 30, 31, 32, 35, 41, 42, 43, 44, 48, 49 ,51, 52, 55, 56, 59, 60,
61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 79, 80, 81, 82, 83,
84, 85, 86, 87, 88
Unit 2