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Unit 3 Study Guide (Ch. 6 and 7)
Review atomic theory and the major contributions by Democritus, Dalton,
Thomson, Rutherford, and Bohr. Place their atomic models in a sequence
according to the timeline.
Know the mass (a.m.u), location, and charge of each particle in the atom.
Determine the mass number of an atom given the number of protons,
electrons, and neutrons.
Know the definition of an isotope and be able to recognize if an element is
an isotope or a different element.
Recognize the definition for periodic law.
Know how to read the symbol box on the periodic table (see the key) in our
textbook.
Recognize the most important properties of specific groups of elements on
the periodic table, i.e, alkali metals, alkaline-earth metals, transition metals,
halogens, and noble gases.
What is the difference between alkaline and alkaline-earth metals?
Recognize a description of the forces in an atom (gravitational force,
electromagnetic force, strong force, weak force).
Recognize a description of an ion and atomic mass.
How did Dimitri Mendeleev arrange the periodic table compared to Henry
Moseley?
Be able to recognize where classifications of elements are located on the
periodic table based on the color coding and in relation to the zig zag line.
What is the difference between a group and a period on the periodic table.
Recognize the characteristic of specific elements in groups 13, 14, 15, and
16 (like Aluminum, Carbon, Nitrogen, and Oxygen)