NAME: ________________________

Chapter 2 AP Biology Test

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5 Written Questions

5 Matching Questions

  1. atomic number
  2. atom
  3. double covalent bond
  4. reactant
  5. potential energy
  1. a smallest unit of matter that still retains the properties of an element
  2. b energy that matter stores because of its position or location
  3. c sharing two pairs of valence electrons
  4. d number of protons
  5. e starting materials

5 Multiple Choice Questions

  1. attraction of an atom for the electrons
  2. point at which reactions offset one another exactly, no effect on concentrations of reactants and products
  3. ability to do work
  4. represents both atoms and bonding
  5. charged atom

5 True/False Questions

  1. isotopesmallest unit of matter that still retains the properties of an element

          

  2. valencebonding capacity, equals number of unpaired electrons in the atom's outermost shell

          

  3. van der Waals interactionouter electrons

          

  4. nonpolar covalent bondtwo atoms are equally electronegative

          

  5. cationpositively charged ion

          

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