Examlex
Which of the following exists highest in the atmosphere?
MgO
Magnesium oxide, a white hygroscopic solid mineral that is used as a refractory material, in medication, and as a magnesium source in animal feeds.
Oxidation Number
A concept in chemistry that represents the degree of oxidation of an atom in a chemical compound, indicating the number of electrons lost or gained by an atom.
Oxidation Number
A number assigned to an atom in a chemical compound that represents the number of electrons lost or gained by the atom.
Carbon
A chemical element with symbol C and atomic number 6, fundamental to life and used in countless industrial applications.
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