Hydrogen is the most abundant element found on Earth. Other abundant elements include helium, and oxygen, as well as silicon.
Oxygen!ElementAbundancepercent by weightAbundanceparts per million by weightOxygen46.1%461,000Silicon28.2%282,000Aluminum8.23%82,300Iron5.63%56,300Calcium4.15%41,500Sodium2.36%23,600Magnesium2.33%23,300Potassium2.09%20,900Titanium0.565%5,650Hydrogen0.14%1,400
Oxygen is the most abundant element in Earth's crust.
The most abundant element in Earth's crust is oxygen, making up about 46% of its mass. Silicon is the second most abundant element, comprising about 28% of the Earth's crust.
Hydrogen is the most common element in the Earth's ocean, making up about 11% of the ocean's composition.
The second most common element on Earth is silicon, after oxygen. Silicon is a non-metallic element that is abundant in Earth's crust, mostly found in the form of silicon dioxide (silica) in rocks and minerals.
Hydrogen
Helium is the first member and the most abundent element in the known universe
Nitrogen is!
the second most abundent gas in the atmosphere is oxygen and the first in nitrogen
sodium and chlorine
bacteria
Insects
Iron.
Hydrogen at 71%
Aluminum.
It's mostly iron (Fe) and nickel (Ni) down there. And it's molten, so it's real hot.
Mercury is the most iron-rich planet in the solar system.