I would like to know if I should use following or according to when referring to some guidelines, such as in the following example: Stunting was diagnosed when a patient’s height was smaller than 1.40m, for men, or 1.30m, for women.
Oxidation occurs when an atom, molecule, or ion loses one or more electrons in a chemical reaction. When oxidation occurs, the oxidation state of the chemical species increases. Oxidation doesn't necessarily involve oxygen! Originally, the term was used when oxygen caused electron loss in a reaction. The modern definition is more general.
Oxidation does not mean that an oxygen atom is added to the compound. Instead, it is a chemical reaction that involves the loss of electrons. Metals are generally considered to be elements that can easily lose electrons, so they are known to be easily oxidized.
Oxidation involves removal of an electropositive atom, radical, or electron or, conversely, the addition of an electronegative moiety. These reactions are usually catalyzed by oxygen, heavy metal ions, and light, leading to free radical formation.
By definition, the oxidation state of an atom is the charge that atom would carry if the compound were purely ionic. For the active metals in Groups IA and IIA, the difference between the oxidation state of the metal atom and the charge on this atom is small enough to be ignored.
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