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I believe it is Hydrogen
Yes
Astatine is found less than 28 grams in the earth crust
No, hydrogen is not a gas in the troposphere. It is a highly reactive element and is typically found in the form of compounds such as water vapor (H2O) or methane (CH4). These compounds can exist as gases in the troposphere, but not hydrogen itself.
Silicon is a rather curious element, surpassed only by oxygen for the most abundant element to be found in the crust. Silicon's modern uses include mainly different types of electronics, such as solid-state drives.
I believe it is Hydrogen
Oxygen is the most common element in the crust.
Oxygen is the most common element in the crust.
Occurring in the Earth's crust, hydrosphere, and/or atmosphere in chemically uncombined form.
Yes
It is a metallic element found in the earth's crust
what are two elements that can be found in the soiold earths crust
The water in the Earth's surface is called the hydrosphere.
Fermium is an artificial element.
That would be silicon, or SiO2
Yes
Nitrogen or if your talking about the crust Silicon