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Matter and materials


After this lesson, you should be able to:

  • Understand periodicity by looking into various properties, such as density, melting and boiling points, atomic radii, formulae of halides or oxides, ionization energy, electronegativity and electron affinity
  • List similarities in chemical properties among elements in groups 1, 2, 17 and 18, such as reactivity
  • Predict chemical properties of elements in groups 1, 2, 17 and 18
  • Indicate where metals, nonmetals and transition metals can be found