The most valuable element is Californium (Cf). Its Cf-252 isotope is used in nuclear reactors and cancer therapy. Cf-252 costs $350 billion per pound
In the Earth crust the most abundant are oxygen and silicon.
The two elements that commonly occur within the earth crust are Oxygen and Silicon.
Nitrogen 78 % Silica in soil
They are the three compositional elements of most forms of art.
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The three most abundant elements in the Earth's atmosphere and the percents are:nitrogen-78,084 %, oxygen-20,946 % and argon-0,934 %.?
These elements are nitrogen, oxygen and argon.
iron, oxygen, silicon
Si, O, and Ca.
As of 2021, the most valuable metal in the world is usually considered to be rhodium. Rhodium is a rare precious metal that is even more valuable than gold. It is commonly used in catalytic converters and in the jewelry industry.
Earth, Water, Fire. May not be the most common but are the three elements.
Most elements on the Earth occur as oxides or silicates.
The three elements that make up most of Earth's mantle are oxygen, silicon, and magnesium.
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oxygen, silicon, aluminium
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