Elements
Published on Nov 27, 2015
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PRESENTATION OUTLINE
GOLD (AU)
- Atomic number- 79
- Atomic mass- 196.96655 amu
- Discoverer is unknown discovered approximately 3000 BC
- Because it is room temperature when solid, often used for jewelry or coins
- Although much gold resides in the ocean floor, it's more expensive to mine it than the gold is worth
Photo by milena mihaylova
VANADIUM (V)
- Atomic number-23
- Atomic mass-50.9415 amu
- Discovered- Nils Sefstrom in 1830
- Hard substance used for catalysts, dyes and color fixers
- Once discovered once by Del Rio but when challenged he undiscovered it
Photo by hmboo Electrician and Adventurer
SAMARIUM (SM)
- Atomic number- 62
- Atomic mass- 150.36 amu
- Discovered- Paul Emile Lecoq de Boisbaudran in 1879
- Solid, used in magnets and nuclear reactors
- Taken in proper amounts it mixes with alcohol and keeps you from being drunk
HELIUM (HE)
- Atomic number- 2
- Atomic mass- 4.0026 amu
- Discovered independently but at the same time by Sir William Ramsey and Per Theodor Cleve in 1895
- Gas at room temperature and used for filling balloons
- Helium is the 2nd most abundant element in the universe but earth's atmosphere isn't thick enough to contain it.
Photo by Monazza Talha
CHLORINE (CL)
- Atomic number- 17
- Atomic mass- 35.4527 amu
- Discovered- Carl Wilhelm Scheele in 1774
- Gaseous at room temperature, used to purify water and in bleaches
- Tree frogs have a chlorine compound in their skin that is a pain killer, 200x stronger than any others
Photo by m01229
MAGNESIUM (MG)
- Atomic number- 12
- Atomic mass- 24.305 amu
- Discovered- Joseph Black in 1755
- Solid at room temperature, used in airplanes and missiles
- Magnesium tastes sour and produces a tart taste in mineral water
Photo by wbaiv
SULFUR (S)
- Atomic number- 16
- Atomic mass- 32.065 amu
- Discovered- unknown discoverer in approximately 5000 bc
- Solid at room temperature used in matches, gun power and medicine
- Disulfide bonds add to the curliness and texture of hair. More bonds, more curl.
Photo by Shiny Things
