C2 Topic 4

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Most metals

  • A. Are brittle
  • B. Are poor conductors of electricity
  • C. Are good conductors of heat
  • D. Have low melting points

Atoms in a propane molecule are joined by covalent bonds. each covalent bond contains a pair of

  • A. electrons
  • B. Protons
  • C. Neutrons
  • D. Ions

Which of these statements about halogens are correct? 1. As the atomic numbers of the halogens increase, the boiling points of the halogens increase. 2. As the atomic numbers of the halogens increase, the intermolecular forces of attraction increase

  • A. 1 only
  • B. 2 only
  • C. both 1 and 2
  • D. neither 1 nor 2