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6 Written questions

6 Multiple choice questions

  1. a model that uses electron-dot structures to show how electrons are arranged in molecules
  2. a mixture of elements that has metallic properties
  3. States that atoms like hydrogen and helium only need two valence electrons to be stable
  4. the electrons involved in metallic bonding that are free to move easily from one atom to the next throughout the metal and are not attached to a particular atom
  5. the electrostatic force that holds oppositely charged particles together; usually a nonmetal paired with a metal
  6. the simplest ratio of ions represented in an ionic compound

6 True/False questions

  1. oxidation numberStates that atoms lose, gain or share electrons in order to acquire a full set of eight valence electrons

          

  2. polar covalentforms when two or more atoms covalently bond; usually includes two or more nonmetals

          

  3. octet ruleStates that atoms like hydrogen and helium only need two valence electrons to be stable

          

  4. exothermica chemical reaction in which more energy is released that is required to break bonds in the initial reaction

          

  5. metallic bonda bond that results from the sharing of valence electrons

          

  6. moleculeStates that atoms lose, gain or share electrons in order to acquire a full set of eight valence electrons