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Gold

Gold. Presented By Elizabeth Fischbach. Periodic Table Information. Atomic Number 79 # electrons and protons 79 # neutrons 118 Mass Number 197 Aurum (Au) Means gold in Latin. Atomic Structure. Discovery. Know to Ancients Circa 3000BC. Physical Properties. Solid Odorless

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Gold

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  1. Gold Presented By Elizabeth Fischbach

  2. Periodic Table Information • Atomic Number 79 • # electrons and protons 79 • # neutrons 118 • Mass Number 197 • Aurum (Au) Means gold in Latin

  3. Atomic Structure

  4. Discovery • Know to Ancients • Circa 3000BC

  5. Physical Properties • Solid • Odorless • Boiling Point 5084.6oF • Melting Point 1947.9741oF • Conducts Heat and electricity • Shinny, Smooth • Density 19.32g/cm3 • Malleability • Ductility • Hardness – 2-4, 2.5-3, 3.5-4

  6. Reacts with: Iodides Fluorides Chlorides Bromides Oxides Sulfides Selenides Telluride Chemical Properties

  7. Found • Earth’s crust, copper ore • Countries like Untied States, Australia, Mexico

  8. Uses • Jewelry- gold is mixed with copper, silver, zinc, and nickel • Art • Dental crown • Industry • Electronics • Coins

  9. Isotopes • 7 • Au 194 -199

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