Final answer:
The correct symbol for silver on the periodic table is 'Ag', derived from its Latin name 'argentum', and silver usually forms a +1 ion.
Step-by-step explanation:
The correct symbol for silver is Ag. This symbol is derived from the Latin name for silver, 'argentum'. Silver's atomic number is 47, and it is represented by the symbol Ag in the periodic table. For example, silver sulfide, a compound containing silver, is written as Ag2S. When forming ions, silver typically takes on a +1 charge, often denoted as Ag+.