19 Atoms

Objectives

Section 1: Structure of the Atom

• 1. identify the names and symbols of common elements.

  2. Identify quarks as subatomic particles of matter.

  3. Describe the electron cloud model of the atom.

  4. Explain how electrons are arranged in an atom.

Section 2: Masses of Atoms

• 1. Compute the atomic mass and mass number of an atom.

  2. Identify the components of isotopes.

  3. Interpret the average atomic mass of an element.

Section 3: The Periodic Table

• 1. Explain the composition of the periodic table.

  2. Use the periodic table to obtain information.

  3. Explain what the terms metal, nonmetal, and metalloid mean.