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Chemistry Chapter 7
Vocabulary
Term | Definition |
---|---|
monatomic ion | an ion formed from a single atom |
binary compound | a compound composed of two different elements |
nomenclature | a naming system |
oxyanion | a polyatomic ion that contains oxygen |
salt | an ionic compound that forms when a metal atom or a positive radical replaces the hydrogen of an acid |
oxidation number | the number of electrons that must be added to or removed from an atom in a combined state to convert the atom into the elemental form |
oxidation state | the condition of an atom expressed by the number of electrons that the atom needs to reach its elemental form |
formula mass | the sum of the average atomic masses of all atoms represented in the formula of any molecule, formula unit, or ion |
percentage composition | the percentage by mass of each element in a compound |
empirical formula | a chemical formula that shows the composition of a compound in terms of the relative numbers and kinds of atoms in the simplest ration |