Abundance of Elements (easy)

I'll give you a Location or an object and you've to find the most abundant Elements that you can find there

Yellow Box is just here so your answers don't interfere with other groups

Not including various gas compositions (e.g. H2O, CO2)

Non-polar molecules (e.g. N2, O2) and Isotopes are counted as Elements

Words in brackets [e.g. "(Mass)"] say that the percentage is derived from that measurement

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Last updated: June 30, 2018

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First submitted	June 30, 2018
Times taken	26
Average score	70.0%
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Earth's Atmosphere (Volume)
78,1%	Nitrogen
21%	Oxygen
0.90%	Argon
0.0018%	Neon
0.0005%	Helium

The Sun (Mass)
73%	Hydrogen
25%	Helium
0.80%	Oxygen
0.36%	Carbon
0.16%	Iron

Neodymium Magnet (Mass)
72%	Iron
27%	Neodymium
1%	Boron

Seawater (Mass)
85.80%	Oxygen
10.80%	Hydrogen
1.90%	Chlorine
1.08%	Sodium
0.12%	Magnesium

The Moon (Mass)
43%	Oxygen
20%	Silicon
19%	Magnesium
10%	Iron
3%	Calcium/Aluminium

Olympic Gold Medal (Mass)
99%	Silver
1%	Gold

Wood (Mass)
50%	Carbon
42%	Oxygen
6%	Hydrogen
1%	Nitrogen
>1%	Calcium/Potassium

Radioactive Elements in the Human Body (Mass)
99%	Potassium-40
0.50%	Uranium
0.10%	Thorium
0.00012%	Carbon-14
0.00000018%	Radium

Stainless Steel (Mass)
main ingredient	Iron
11-20%	Chromium
3-28%	Nickel
1-7%	Manganese
>1%	Carbon/Lead/Silicon