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Modern Chemistry Chapter 5 The Periodic Law

Modern Chemistry Chapter 5 The Periodic Law. Sections 1-3 History of the Periodic Table Electron Configurations and the Periodic Table Electron Configurations and Periodic Properties. Section 1. History of the Periodic Table. Chapter 5 Section 1 History of the Periodic Table pages 133-137.

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Modern Chemistry Chapter 5 The Periodic Law

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  1. Modern ChemistryChapter 5The Periodic Law Sections 1-3 History of the Periodic Table Electron Configurations and the Periodic Table Electron Configurations and Periodic Properties Chapter 5 Section 1 History of the Periodic Table pages 133-137

  2. Section 1 History of the Periodic Table Chapter 5 Section 1 History of the Periodic Table pages 133-137 Chapter 5 Section 1 History of the Periodic Table pages 133-137

  3. Section 1 Vocabulary Periodic table Periodic law Lanthanide Actinide Click on the picture to go to the web site with this Flash Animation. Chapter 5 Section 1 History of the Periodic Table pages 133-137 Chapter 5 Section 1 History of the Periodic Table pages 133-137

  4. Relative Atomic Mass • Stanislao Cannizzaro devised a method for measuring relative atomic mass in 1860. Chapter 5 Section 1 History of the Periodic Table pages 133-137 Chapter 5 Section 1 History of the Periodic Table pages 133-137

  5. Mendeleev and Chemical Periodicity • Mendeleev put names and properties of elements on cards • He arranged cards by properties and looked for patterns • When elements were in order by atomic mass similarities in properties appeared at regular intervals. Chapter 5 Section 1 History of the Periodic Table pages 133-137 Chapter 5 Section 1 History of the Periodic Table pages 133-137

  6. Periodic Table Image p. ## Chapter 5 Section 1 History of the Periodic Table pages 133-137 Chapter 5 Section 1 History of the Periodic Table pages 133-137

  7. Mendeleev and Chemical Periodicity • Periodic: occurring at regular intervals • 1869: He left spaces in his table and predicted properties of missing elements • Sc, Ga & Ge were found with the properties that Mendeleev had predicted Chapter 5 Section 1 History of the Periodic Table pages 133-137 Chapter 5 Section 1 History of the Periodic Table pages 133-137

  8. Predicted elements image Chapter 5 Section 1 History of the Periodic Table pages 133-137 Chapter 5 Section 1 History of the Periodic Table pages 133-137

  9. Nendeleev’s Periodic Table p. 134 Chapter 5 Section 1 History of the Periodic Table pages 133-137 Chapter 5 Section 1 History of the Periodic Table pages 133-137

  10. Moseley and the Periodic Law • Moseley put elements in order by increasing nuclear charge • Let to the definition of atomic number • Periodic Law: The physical and chemical properties of the elements are a periodic function of their atomic numbers. Chapter 5 Section 1 History of the Periodic Table pages 133-137 Chapter 5 Section 1 History of the Periodic Table pages 133-137

  11. Hubbard’s Periodic Table 1924-1950’s Chapter 5 Section 1 History of the Periodic Table pages 133-137 Chapter 5 Section 1 History of the Periodic Table pages 133-137

  12. The Modern Periodic Table • The periodic table is an arrangement of the elements in order of their atomic number so that elements with similar properties fall in the same column. • A web site with many different periodic tables: Chemogenesis Chapter 5 Section 1 History of the Periodic Table pages 133-137 Chapter 5 Section 1 History of the Periodic Table pages 133-137

  13. Overview of the periodic table animation p. 139 Chapter 5 Section 1 History of the Periodic Table pages 133-137 Chapter 5 Section 1 History of the Periodic Table pages 133-137

  14. Lego Periodic Table Chapter 5 Section 1 History of the Periodic Table pages 133-137 Chapter 5 Section 1 History of the Periodic Table pages 133-137

  15. Noble Gases • Lord Rayliegh and Sir Ramsey discovered Ar in 1894. • In 1868 helium discovered on the sun, but in 1895 it was discovered on earth. • Inert, non reactive • Fluorine can be forced to make compound with some noble gases. Chapter 5 Section 1 History of the Periodic Table pages 133-137 Chapter 5 Section 1 History of the Periodic Table pages 133-137

  16. Section 1 Homework Chapter 5 Section 1 History of the Periodic Table pages 133-137 Chapter 5 Section 1 History of the Periodic Table pages 133-137

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