Element brochure/infographic by: Diana Riegg
Element Intro: Gold Au (symbol)
Family/group: 11, name of family/group is (classification is transition metal)
Period it is apart of: 6
visual representation:(down below in gallery)
Chemical Symbol: Au
Atomic Number: 79
Atomic Mass :197
Number of protons, neutrons, and electrons: protons: 79 Neutrons:118 Electrons:79
Number of valence electrons: 1
Any known isotopes of the element: 7 isotopes known;There are 36 known isotopes of gold ranging from Au-170 to Au-205. ( some are below )
Au-194 1.6 days
Au-195 186.1 days
Au-195m 30.5 seconds
Au-1966. 2 days
Au-198 2.7 days
Au-199 3.14 days
A Bohr model representing your element: (picture down below )
Melting point (in degrees F OR in degrees C): 1064.18°C, 1947.52°F
Boiling point (in degrees F OR in degrees C): 2836°C, 5137°F
Density (remember units): (g cm−3) 19.3
Abundance in the earth’s crust (i.e. How much of this element is found in the crust of the Earth?): About 1500 tonnes of gold are mined each year. About two-thirds of it comes from South Africa and most of the rest from Russia.Seawater contains about 4 grams of gold in 1,000,000 tonnes of water. Overall this is a huge amount of gold stored in the oceans but, because the concentration is so low, attempts to get the gold has always failed. Gold is also one of the few elements to appear in it's natural state.
Standard state of the element (Is it a solid, liquid, or gas at room temperature?): Gold is a solid
Explain where the element is found (i.e., in ores, in rocks, etc.): Gold is found in the crust of earth, copper ores
Explain what form the element is found in (pure, compound, etc.): Gold often is found in free elemental form. It is less commonly occurred in minerals as gold compounds.
- Give at least 3 “real world” uses for the element. In other words, what do humans use it for:
- 1. humans use gold for jewelry ( putting it in expensive jewelry, carats; indicating how much gold is present
- 2. Humans use gold for coinage and money, used in many countries
- 3.Humans also use gold for electrical compound components because it conducts electricity well.
Interesting Facts about Gold
2.A total of 183,600 tonnes of gold have been mined in human history, as of 2014. (one metric tonne is 2204.62 pounds!)
Sources (from easy bib, main sources from element brochure/element direction,etc)
"Know Your Elements: Gold Facts." About.com Education. N.p., n.d. Web. 12 Oct. 2015.
"Gold." Gold. N.p., n.d. Web. 12 Oct. 2015.
"Dynamic Periodic Table." Dynamic Periodic Table. N.p., n.d. Web. 12 Oct. 2015.
"Gold." - Element Information, Properties and Uses. N.p., n.d. Web. 12 Oct. 2015.
"The Element Gold." It's Elemental -. N.p., n.d. Web. 12 Oct. 2015
"Bentor, Yinon. Chemical Element.com - Gold. Oct. 13, 2015 "<http://www.chemicalelements.com/elements/au.html>