Gold

Dalyn LeGrand and Zach Suchanick

History

Gold has been known since ancient times. Though we don't know where it originated from we know the word gold comes from the Anglo-Saxon word gold while the origin of the symbol Au is the Latin word aurum meaning gold.

Gold Properties:

  • Malleable
  • Ductile
  • Heavy

Uses Of Gold

Compounds with Gold

  • chlorauric acid (HAuCl4)
  • Gold (III) Bromide (AuBr3)
  • auric chloride (AuCl3)

Information

  • Atomic Number - 79
  • Atomic Weight - 196.9678 g
  • Protons - 79, Electrons - 79, Neutrons - 118
  • Gold is a mono-isotopic element
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Gold has 1 valence electron

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Properties of Transition Metals

  1. Low ionization energies
  2. High melting points
  3. High boiling points
  4. Good conductors of heat and electricity
  5. Malleable

Gold + Chlorine pt. 1

  • This is Synthesis
  • 2 Au + 3 Cl2 → 2 AuCl3
  • 2 mol Gold : 3 mol Chlorine : 2 mol Gold Trichloride
Gold Coin Dissolving in Acid (Aqua Regia)

Gold + Chlorine pt. 2

  • AuCl3
  • Gold Trichloride
  • Ionic
  • 51% Gold, 49% Chlorine

GOLD

Giving

Our

Ladies

Delight

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Citations

Winter, Mark. "Gold: Historical Information." Gold»historical Information [WebElements Periodic Table]. N.p., n.d. Web. 02 May 2016.


Winter, Mark. "Gold: Physical Properties." Gold»physical Properties [WebElements Periodic Table]. N.p., n.d. Web. 02 May 2016.


"The Many Uses of Gold - U.S. Global Investors." The Many Uses of Gold - U.S. Global Investors. N.p., n.d. Web. 02 May 2016.


"Learn Properties of Transition Metals." About.com Education. N.p., n.d. Web. 02 May 2016.


Winter, Mark. "Gold: Reactions of Elements." Gold»reactions of Elements [WebElements Periodic Table]. N.p., n.d. Web. 03 May 2016.


The Editors of Encyclopædia Britannica. "Gold (Au)." Encyclopedia Britannica Online. Encyclopedia Britannica, n.d. Web. 03 May 2016.