oxidation state – מילון אנגלי-אנגלי
oxidation state
n.
(Chemistry) oxidation number, number of electrons needed to restore an atom in a combining condition to its elemental form
Oxidation state
The
oxidation state, often called the
oxidation number, is an indicator of the degree of
oxidation (loss of electrons) of an
atom in a
chemical compound. Conceptually, the oxidation state, which may be positive, negative or zero, is the
hypothetical charge that an atom would have if all
bonds to atoms of different elements were 100%
ionic, with no
covalent component. This is never exactly true for real bonds.
oxidation state
Noun
1. the degree of oxidation of an atom or ion or molecule; for simple atoms or ions the oxidation number is equal to the ionic charge; "the oxidation number of hydrogen is +1 and of oxygen is -2"
(synonym) oxidation number
(hypernym) number
oxidation number (oxidation state; positive valence)
A convention for representing a charge of an atom embedded within a compound, if the compound were purely ionic. For example, H
2O is a covalent compound; if it were ionic, the hydrogens would be H
+ (oxidation number +1) and the oxygen would be O
2- (oxidation number -2). Oxidation number rises for at least one atom in a compound that is
oxidized ; oxidation number becomes smaller if the compound is
reduced.
oxidation state
n.
(kemi) oxidation tilstand, oxidation tal, antal elektroner der behøves for at genskabe et atoms elementære form i en kombineret tilstand
