JOURNEY TO MIDDLE EARTH: OPPORTUNITIES AND CHALLENGES AT THE CENTER OF THE PERIODIC TABLE

Feb 11, 2012

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JOURNEY TO MIDDLE EARTH: OPPORTUNITIES AND CHALLENGES AT THE CENTER OF THE PERIODIC TABLE

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The Periodic Table

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The Periodic Table and the Elements

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The Periodic Table

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The Periodic Table of Elements

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Periodic Table

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Atoms and the Periodic Table

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Ch. 5 “The Periodic Table”

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The Periodic Table

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Chapter 4

Periodic Table. Chapter 4. History of the Periodic Table. Dmitri Mendeleev wrote the first periodic table. He arranged elements in order of atomic mass. He noticed repeating properties. Mendeleev’s periodic table. Moseley’s periodic table.

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Early Periodic Table. 1700’s about 30 elements listed. Mostly metals used for constructive purposes, with a few non-metals. Early Periodic Table. J. W. Dobereiner (Early 1800’s) formed groups of 3 called “triads”. Properties of the “middle” element are roughly the average of the other two.

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Unit 4

Periodic Table and Periodicity. Unit 4. Table of Contents. Development of the periodic table Periodic families and their properties Periodic trends: atomic radii, ionic radii, electronegativity, and ionization energy. Formation of the Periodic Table of Elements.

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Chapter 6: Periodic Table

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