Gold

By: Taryn Brown

Element Introdution

Element name - Gold
Gold gets its English name from the German word for gold, gulþa. In old English, yellow was called geolu. In Latin, gold is called aurum so that is where the chemical symbol (Au) comes from.
Group: #11 Group name: none Period: #6

General Information

Chemical Symbol - Au
Atomic Number - 79
Atomic Mass - 197.0
Protons- 79 Electrons- 79 Neutrons- 118
Number of valence electrons - 1

Isotopes of the element - 1 stable isotope, between 18-59 unstable isotopes

< A Bohr model representing gold is pictured to the left

Physical Properties

    1. Melting point - 1064.18 °C

    2. Boiling point - 2856 °C

    3. Density - 19.282 grams per cubic centimeter

    4. Abundance in the earth’s crust - 4×10-3 milligrams per kilogram

    5. Standard state of the element - Solid

South African Gold Refinery

Uses

Gold is found underground and in rivers. It can be found in its pure form like a gold nugget. Gold can be used for jewelry, coins, and dental work (crowns).

Interesting Facts

I think it is interesting that gold can be used to treat cancer, especially bladder, cervix, and prostate.

It is also interesting that it is used in space helmets and satellites because it is a great shield for radiation.

Citations

"The Element Gold." It's Elemental -. N.p., n.d. Web. 12 Oct. 2015.

"Periodic Table of Elements: Los Alamos National Laboratory." Periodic Table of Elements: Los Alamos National Laboratory. N.p., n.d. Web. 13 Oct. 2015. <http://periodic.lanl.gov/index.shtml>.

"Wikijunior:The Elements/Gold." - Wikibooks, Open Books for an Open World. N.p., n.d. Web. 13 Oct. 2015. <https://en.wikibooks.org/wiki/Wikijunior:The_Elements/Gold>.

"Gold Element Facts." Chemicool. N.p., n.d. Web. 13 Oct. 2015. <http://www.chemicool.com/elements/gold.html>.

Nave, R. "Gold." Hyperphysics. N.p., n.d. Web. 13 Oct. 2015. <http://hyperphysics.phy-astr.gsu.edu/hbase/pertab/au.html>.