Chemical Abundances - kastatic.org

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CHEMICAL ABUNDANCES

EARTH’S CRUST 100%

75%

50%

25%

0%

ELEMENTS > 1%

PERCENTAGE OF ABUNDANCE

oxygen silicon aluminum iron calcium magnesium sodium potassium

LOCATION ON THE PERIODIC TABLE

46% 27% 8% 6% 5% 3% 2% 2%

ELEMENTS < 1%

GOLD PROFILE

79

Au

79 118

gold

196.966569

Extremely high mass stars can form heavier elements like gold as they age and when they die in supernovae. Gold is one of the most coveted of elements and has been prized for centuries. As of 2012, roughly 165,000 metric tons of gold has been mined from the Earth’s crust. That’s about 5,304,873 troy ounces. It would all fit in a 20-meter cube (about the size of a medium-sized building or 60 semitrailers) and is worth close to $10 trillion. ALL THE MINED GOLD FITS IN:

x 60

titanium carbon hydrogen manganese

0.66 0.18 0.15 0.11

phosphorus fluorine sulfur strontium barium vanadium chlorine chromium zirconium

0.099 0.054 0.042 0.036 0.034 0.019 0.017 0.014 0.013

nickel zinc copper rubidium cerium lanthanum neodymium cobalt yttrium scandium nitrogen gallium niobium lithium

0.0089 0.0078 0.0068 0.006 0.006 0.0034 0.0033 0.003 0.0029 0.0026 0.002 0.0019 0.0017 0.0017

lead praseodymium boron dysprosium thorium samarium gadolinium hafnium erbium bromine ytterbium tin arsenic cesium beryllium uranium europium tantalum argon germanium holmium tungsten molybdenum

9.9×10-4

terbium lutetium thallium iodine thulium antimony indium cadmium

9.3×10-5 5.6×10-5 5.3×10-5 4.9×10-5 4.5×10-5 2×10-5 1.6×10-5 1.5×10-5

silver mercury selenium platinum bismuth

7.9×10-6 6.7×10-6 5×10-6 3.7×10-6 2.5×10-6

palladium helium gold neon rhenium osmium

6.3×10-7 5.5×10-7 3.1×10-7 3×10-7 2.6×10-7 1.8×10-7

tellurium ruthenium rhodium iridium krypton

9.9×10-8 9.9×10-8 7×10-8 4×10-8 1.5×10-8

xenon

2×10-9

radium protactinium

9.9×10-12 9.9×10-13

8.6×10-4 8.6×10-4 6.2×10-4 6×10-4 6×10-4 5.2×10-4 3.3×10-4 3×10-4 3×10-4 2.8×10-4 2.2×10-4 2.1×10-4 1.9×10-4 1.9×10-4 1.8×10-4 1.8×10-4 1.7×10-4 1.5×10-4 1.4×10-4 1.2×10-4 1.1×10-4 1.1×10-4

WEIGHS AS MUCH AS:

x 33,000 AND IS WORTH ABOUT:

$10,000,000,000,000

ELEMENTS = 0% OR UNKNOWN

technetium promethium polonium astatine radon francium actinium neptunium plutonium americium curium

berkelium californium einsteinium fermium mendelevium nobelium lawrencium rutherfordium dubnium seaborgium bohrium

hassium meitnerium darmstadtium roentgenium copernicium ununtrium flerovium ununpentium livermorium ununseptium ununoctium

IMAGE CREDIT NASA/NOAA/GSFC/Suomi NPP/VIIRS/Norman Kuring DATA CREDITS © Wolfram Alpha, www.wolframalpha.com | World Gold Council