Au
Published on Nov 19, 2015
all about gold
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PRESENTATION OUTLINE
# GOLD
- the name of this element is gold.
- its name originates from the sanskirt word Jval
- the elements symbol is Au
- which comes from the latin word aurum.
- the date of discovery is circa 3000 BC
Photo by pareeerica
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#gold continued
- who and how it was discovered is unknown
- There is more steel created per hour
- than there has been gold dug up throughout history.
- Around 161,000 tons of gold have been mined by humans
- in an ultra-luxury hotel, the vending machine itself is covered in 24-carat gold.
Photo by YannGarPhoto
GOLD
- today gold is used for coins as money
- it is also used inside of electronics
- this element being dug up under Earth's surface
- its melting point is 1064.43 °C (1337.5801 K, 1947.9741 °F)
- its boiling point is 2807.0 °C (3080.15 K, 5084.6 °F)
You will answer the following questions:
! Element Name
! Origin of name (if applicable)
! Symbol
! Bohr model
! Historical background - discovery of the
element – who and how?
! Interesting or unusual past uses
! Uses and importance
! How is the element obtained, made,
synthesized, etc.
! Melting point (Celsius)
! Boiling point (Celsius)
! Density (at room temperature)
! Other physical properties
! Chemical properties and/or reactivity
! Does it form compounds? If so, give some
examples.
! Find some bizarre/unique fact about your
element- something you believe is
distinctive and relatively unknown by the
general population.
! Name (first name and last initial ONLY) &
class period somewhere t
! Element Name
! Origin of name (if applicable)
! Symbol
! Bohr model
! Historical background - discovery of the
element – who and how?
! Interesting or unusual past uses
! Uses and importance
! How is the element obtained, made,
synthesized, etc.
! Melting point (Celsius)
! Boiling point (Celsius)
! Density (at room temperature)
! Other physical properties
! Chemical properties and/or reactivity
! Does it form compounds? If so, give some
examples.
! Find some bizarre/unique fact about your
element- something you believe is
distinctive and relatively unknown by the
general population.
! Name (first name and last initial ONLY) &
class period somewhere t
Photo by @Doug88888
GOLD
- its density @ room temp. is 19.32 g/cm3
- the color of it is gold
- it is a solid at room temp.
- yes , one of its compounds is when it is mixed w/ gold to form a solid
- it is not very reactive
Injectable gold has been proven to help reduce pain and swelling in patients suffering from tuberculosis and rheumatoid arthritis.
Photo by krazydad / jbum
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- Injectable gold has been proven to help reduce pain
- and swelling in patients suffering from tuberculosis & arthritis.
- By : Jeanice M.
- 2nd period
Photo by The Crucible Oakland
Geolo, the origin of gold's name meaning yellow
Once used to cover a vending machine
Located under all 7 continents
Drilled from underground
Photo by Claudio.Ar
thanks to:http://www.numbersleuth.org/worlds-gold/
and other google websites
Photo by sajia.hall
