CHAPTER 4 TEST REVIEW
TEST FORMAT: 5 matching, 20 multiple choice, 5 problems, 2 bonus questions (6 pts. total is possible)
SECTION 4.1: DEFINING THE ATOM and SECTION 4.2: STRUCTURE OF THE NUCLEAR ATOM
What is the purpose of comparing the number of atoms of copper in a coin the size of a penny with the number of people on the
earth?
Scientists and their discoveries/theories/dates: Democritus, Dalton (4 points), Thomson, Millikan, Rutherford, Goldstein, Chadwick
Definition of “atom”
Relative masses of the electron, proton, neutron
Modern atomic theory
Location of and charge on protons, neutrons and electrons
4.3: DISTINGUISHING AMONG ATOMS
How to determine the number of protons, neutrons and electrons (see Atomic Structure WS)
How to determine the average atomic mass of an element (see Average Atomic Mass WS on the website)
Definitions of mass number and atomic number
Complete symbols for elements
Isotope notation for isotopes (Hydrogen – 2, for example)
CHAPTER 4 TEST REVIEW
TEST FORMAT: 5 matching, 20 multiple choice, 5 problems, 2 bonus questions (6 pts. total is possible)
SECTION 4.1: DEFINING THE ATOM and SECTION 4.2: STRUCTURE OF THE NUCLEAR ATOM
What is the purpose of comparing the number of atoms of copper in a coin the size of a penny with the number of people on the
earth?
Scientists and their discoveries/theories/dates: Democritus, Dalton (4 points), Thomson, Millikan, Rutherford, Goldstein, Chadwick
Definition of “atom”
Relative masses of the electron, proton, neutron
Modern atomic theory
Location of and charge on protons, neutrons and electrons
4.3: DISTINGUISHING AMONG ATOMS
How to determine the number of protons, neutrons and electrons (see Atomic Structure WS)
How to determine the average atomic mass of an element (see Average Atomic Mass WS on the website)
Definitions of mass number and atomic number
Complete symbols for elements
Isotope notation for isotopes (Hydrogen – 2, for example)