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An Element is Chemicals such as hydrogen (H), iron (Fe), sodium (Na), carbon (C), nitrogen (N), or oxygen (O), whose distinctly different atoms serve as the basic building blocks of all matter. There are 92 naturally occurring Elements. Another 15 have been made in laboratories. Two or more Elements combine to form compounds that make up most of the world's matter. See compound.

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Atom ■■■■■■■■
An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element. . . . Read More
Organic compound ■■■■■■■■
An Organic compound is Molecule that contains Atoms of the Element carbon, usually combined with itself . . . Read More
Fixation ■■■■■■■
Fixation in the environmental context refers to the process by which a substance is captured and converted . . . Read More
Dioxide ■■■■■■■
"Dioxide" refers to a compound that contains two atoms of oxygen and one other element, such as carbon . . . Read More
Monoxide ■■■■■■■
"Monoxide" refers to a compound composed of one atom of oxygen and one atom of another element, typically . . . Read More
Compound ■■■■■■■
A Compound is Combination of two or more different chemical elements held together by chemical bonds. . . . Read More
Hydrocarbon ■■■■■■■
In organic chemistry, a hydrocarbon is an organic compound consisting entirely of hydrogen and carbon.[1] . . . Read More
Organic Compounds ■■■■■■
An ORGANIC COMPOUNDS is Chemicals that contain carbon. Volatile Organic Compounds23 vaporize at room . . . Read More
Carbon ■■■■■■
Carbon is a chemical element with the symbol C. The standard atomic weight is 12.011. It is tetravalent . . . Read More
Steel at quality-database.eu■■■■■■
Steel is an alloy of iron and carbon. Carbon is the primary alloying element, and its content in the . . . Read More