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1.36 describe an ionic crystal as a giant three-dimensional lattice structure held together by the attraction between oppositely charged ions

  • Ionic crystals are 3D lattice structures held together by electrostaticity.
  • Key term:¬†electrostaticity / electrostatic force is the force/act of attraction/repulsion in molecules
  • This is present in ionic compounds as the ions are strongly attracted to each other…
  • 14 more words
Chemistry

1.35 understand the relationship between ionic charge and the melting point and boiling point of an ionic compound

  • The higher the charge of the ions, the higher the melting points
This is a paper 2, triple science fact.
Chemistry

1.34 understand that ionic compounds have high melting and boiling points because of strong electrostatic forces between oppositely charged ions

  • Ionic compounds have high melting points and boiling points because of strong electrostatic force between oppositely charged ions.
  • It takes a lot of energy to break this force
Chemistry

1.32 explain, using dot and cross diagrams, the formation of ionic compounds by electron transfer, limited to combinations of elements from Groups 1, 2, 3 and 5, 6, 7

  • You require one sodium electron from the outer shell of sodium to join chlorine
  • By removing the one electron you make the outer shell of sodium full¬†
  • 22 more words
Chemistry