Chemistry
Vocabulary
Ch: 7
Sec: 1
Monoatomic ions
Ions formed from a single atom.
Binary compounds
Compounds composed of two elements.
Nomenclature (naming system)
Involves combining the names of the compounds positive and negative ions.
Oxyanions
Polyatomic ions that contain oxygen.
Salt
An ionic compound composed of a cation and the anion from an acid.
Ch: 7 Sec: 2
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
Chemistry
Ch: 7 Sec: 3
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
Ch: 7 Sec: 4
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 ratio