* Sodium (Na): From the Latin "natrium"
* Potassium (K): From the Latin "kalium"
* Iron (Fe): From the Latin "ferrum"
* Copper (Cu): From the Latin "cuprum"
* Gold (Au): From the Latin "aurum"
* Silver (Ag): From the Latin "argentum"
* Mercury (Hg): From the Latin "hydrargyrum"
* Lead (Pb): From the Latin "plumbum"
* Tin (Sn): From the Latin "stannum"
* Antimony (Sb): From the Latin "stibium"
So, there's no single answer to your question. Many substances have chemical symbols derived from their Latin names.