Charles Dickens, in full Charles John Huffam Dickens, (born February 7, 1812, Portsmouth, Hampshire, Englandâdied June 9, 1870, Gadâs Hill, near Chatham, Kent), English novelist, generally considered the greatest of the Victorian era.
The alkali metals in group 1 are always +1 when they form cations. The alkaline earth metals in group 2 are always +2 when they form cations. Aluminum and the elements in group 3 are always +3 when they form cations. Zinc and cadmium always form +2 cations. Monatomic Cation Names. The names of monatomic cations always start with the name of the metal, sometimes followed by a Roman numeral to indicate the charge of the ion. For example, Cu + is copper(I), and Cu 2+ is copper(II).
Sodium has a positive 1 charge and chloride has a negative 1 charge. Thus one sodium cation cancels one chloride anion resulting in the formula Na1Cl1 or NaCl. This formula is called the formula unit since it represents only one unit of the vast NaCl array or lattice. Below are other examples of simple ionic compounds made up of single atom (monatomic) ions: Polyatomic ions and compounds: The ionic compounds above were made up of monatomic ions.