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6 Written questions

6 Multiple choice questions

  1. chemical reaction in which a greater amount of energy is required to break the existing bonds in reactants than is released when the new bonds form in product molecules
  2. a bond that results from the sharing of valence electrons
  3. the positive or negative charge of a monatomic ion
  4. a type of bond that forms when electrons are not shared equally
  5. a mixture of elements that has metallic properties
  6. a model that uses electron-dot structures to show how electrons are arranged in molecules

6 True/False questions

  1. formula unitforms when two or more atoms covalently bond; usually includes two or more nonmetals

          

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

          

  3. expanded octeta chemical reaction in which more energy is released that is required to break bonds in the initial reaction

          

  4. octet ruleStates that atoms lose, gain or share electrons in order to acquire a full set of eight valence electrons

          

  5. metallic bondthe attraction of a metallic cation for delocalized electrons

          

  6. chemical bondthe electrostatic force that holds oppositely charged particles together; usually a nonmetal paired with a metal

          

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