Latin Names and Nomenclature
Sodium Natrium Na +1
Potassium Kalium K +1
Iron Ferrum Fe +2, +3
Copper Cuprum Cu +1, +2
Tin Stannum Sn +2, +4
Antimony Found in ore called Stribnite Sb +3, +5
Tungsten Found in ore called Wolfram W +6
Gold Aurum Au +1, +3
Silver Argentum Ag +1
Mercury Hydrargyrum Hg +1, +2
Lead Plumbum Pb +2, +4
Almost all the transition elements are multivalent, but you will only need to know the names and valences of the latin named ones.
Use of prefixes will be limited to molecular solids as in other cases they are redundant. In multivalent materials, either the roman numerals or the latin suffixes will/are to be used.