1. Name _______________________________________ Date ______________________
Chapter 4 Study Guide
“Atomic Structure”
• What is an atom? Use Dalton’s atomic theory in your explanation
• What are the three subatomic particles?
• What are the relative masses of the proton, neutron and electron?
• What are the charges of the proton, neutron and electron?
• Where in the atom are the three subatomic particles located?
• What were the three conclusions of Rutherford’s Gold Foil Experiment?
• What does the atomic number of an element equal?
• What does the mass number of an element equal?
• How do you find the number of neutrons in an atom if you have the atomic number
and the mass number?
• Know what the superscript and subscript of a complete symbol in elemental notion
stand for
• What is an isotope?
• When naming isotopes? What does the number after the element’s name mean?
• What unit is used to measure atomic mass? Why do chemists use this unit?
• How do you calculate the average atomic mass of an elements isotope?
• How is the periodic table of elements organized?
• What is a period?
2. • What is a group?
• What are the characteristics of metals?
• What are the alkali metals? (What group are they in?)
• What are the alkaline earth metals? (What group are they in?)
• What groups are the transition metals in?
• Where are the non-metals located on the periodic table?
• What group are the halogens located in?
• What group are the noble gases located in?
