GCSE Science Covalent Substances: Two Kinds

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  • atoms form very strong covalent bonds to form small molecules of several atoms
  • has weak intermolecular forces, low melting and boiling points
  • many molecular forces are gases or liquids at room temperature, cannot be solids
  • molecular substances do not conduct electricity there are no ions and no electrical charge 
  • similar to ionic structures except that there are no charged ions
  • all atoms bond to each other by strong covalent bonds
  • very high melting and boiling points
  • do not conduct electricity even…


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